What did Jesus say about Hell and the Day of Judgment? Here are all the verses I could find, taken just from the Gospel of Matthew.
4 :21 “You have heard that it was said to the people long ago, ‘You shall not murder, and anyone who murders will be subject to judgment.’ 22 But I tell you that anyone who is angry with a brother or sister will be subject to judgment. Again, anyone who says to a brother or sister, ‘Raca,’ is answerable to the court. And anyone who says, ‘You fool!’ will be in danger of the fire of hell.
4:27 “You have heard that it was said, ‘You shall not commit adultery.’ 28 But I tell you that anyone who looks at a woman lustfully has already committed adultery with her in his heart. 29 If your right eye causes you to stumble, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell. 30 And if your right hand causes you to stumble, cut it off and throw it away. It is better for you to lose one part of your body than for your whole body to go into hell.
7 13 “Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. 14 But small is the gate and narrow the road that leads to life, and only a few find it.
8:1 “Truly I tell you, I have not found anyone in Israel with such great faith. 11 I say to you that many will come from the east and the west, and will take their places at the feast with Abraham, Isaac and Jacob in the kingdom of heaven. 12 But the subjects of the kingdom will be thrown outside, into the darkness, where there will be weeping and gnashing of teeth.”
10:9 “Do not get any gold or silver or copper to take with you in your belts— 10 no bag for the journey or extra shirt or sandals or a staff, for the worker is worth his keep. 11 Whatever town or village you enter, search there for some worthy person and stay at their house until you leave. 12 As you enter the home, give it your greeting. 13 If the home is deserving, let your peace rest on it; if it is not, let your peace return to you. 14 If anyone will not welcome you or listen to your words, leave that home or town and shake the dust off your feet. 15 Truly I tell you, it will be more bearable for Sodom and Gomorrah on the day of judgment than for that town.
10:28 Do not be afraid of those who kill the body but cannot kill the soul. Rather, be afraid of the One who can destroy both soul and body in hell.
11:21 “Woe to you, Chorazin! Woe to you, Bethsaida! For if the miracles that were performed in you had been performed in Tyre and Sidon, they would have repented long ago in sackcloth and ashes. 22 But I tell you, it will be more bearable for Tyre and Sidon on the day of judgment than for you. 23 And you, Capernaum, will you be lifted to the heavens? No, you will go down to Hades. For if the miracles that were performed in you had been performed in Sodom, it would have remained to this day. 24 But I tell you that it will be more bearable for Sodom on the day of judgment than for you.”
12:33 “Make a tree good and its fruit will be good, or make a tree bad and its fruit will be bad, for a tree is recognized by its fruit. 34 You brood of vipers, how can you who are evil say anything good? For the mouth speaks what the heart is full of. 35 A good man brings good things out of the good stored up in him, and an evil man brings evil things out of the evil stored up in him. 36 But I tell you that everyone will have to give account on the day of judgment for every empty word they have spoken. 37 For by your words you will be acquitted, and by your words you will be condemned.”
12:39 He answered, “A wicked and adulterous generation asks for a sign! But none will be given it except the sign of the prophet Jonah. 40 For as Jonah was three days and three nights in the belly of a huge fish, so the Son of Man will be three days and three nights in the heart of the earth. 41 The men of Nineveh will stand up at the judgment with this generation and condemn it; for they repented at the preaching of Jonah, and now something greater than Jonah is here. 42 The Queen of the South will rise at the judgment with this generation and condemn it; for she came from the ends of the earth to listen to Solomon’s wisdom, and now something greater than Solomon is here.
13 24 Jesus told them another parable: “The kingdom of heaven is like a man who sowed good seed in his field. 25 But while everyone was sleeping, his enemy came and sowed weeds among the wheat, and went away. 26 When the wheat sprouted and formed heads, then the weeds also appeared.
27 “The owner’s servants came to him and said, ‘Sir, didn’t you sow good seed in your field? Where then did the weeds come from?’
28 “‘An enemy did this,’ he replied.
“The servants asked him, ‘Do you want us to go and pull them up?’
29 “‘No,’ he answered, ‘because while you are pulling the weeds, you may uproot the wheat with them. 30 Let both grow together until the harvest. At that time I will tell the harvesters: First collect the weeds and tie them in bundles to be burned; then gather the wheat and bring it into my barn.’”
The Parables of the Mustard Seed and the Yeast
31 He told them another parable: “The kingdom of heaven is like a mustard seed, which a man took and planted in his field. 32 Though it is the smallest of all seeds, yet when it grows, it is the largest of garden plants and becomes a tree, so that the birds come and perch in its branches.”
33 He told them still another parable: “The kingdom of heaven is like yeast that a woman took and mixed into about sixty pounds of flour until it worked all through the dough.”
34 Jesus spoke all these things to the crowd in parables; he did not say anything to them without using a parable. 35 So was fulfilled what was spoken through the prophet:
“I will open my mouth in parables,
I will utter things hidden since the creation of the world.”
The Parable of the Weeds Explained
36 Then he left the crowd and went into the house. His disciples came to him and said, “Explain to us the parable of the weeds in the field.”
37 He answered, “The one who sowed the good seed is the Son of Man. 38 The field is the world, and the good seed stands for the people of the kingdom. The weeds are the people of the evil one, 39 and the enemy who sows them is the devil. The harvest is the end of the age, and the harvesters are angels.
40 “As the weeds are pulled up and burned in the fire, so it will be at the end of the age. 41 The Son of Man will send out his angels, and they will weed out of his kingdom everything that causes sin and all who do evil. 42 They will throw them into the blazing furnace, where there will be weeping and gnashing of teeth. 43 Then the righteous will shine like the sun in the kingdom of their Father. Whoever has ears, let them hear.
47 “Once again, the kingdom of heaven is like a net that was let down into the lake and caught all kinds of fish. 48 When it was full, the fishermen pulled it up on the shore. Then they sat down and collected the good fish in baskets, but threw the bad away. 49 This is how it will be at the end of the age. The angels will come and separate the wicked from the righteous 50 and throw them into the blazing furnace, where there will be weeping and gnashing of teeth.
15 13 He replied, “Every plant that my heavenly Father has not planted will be pulled up by the roots. 14 Leave them; they are blind guides. If the blind lead the blind, both will fall into a pit.”
16 24 Then Jesus said to his disciples, “Whoever wants to be my disciple must deny themselves and take up their cross and follow me. 25 For whoever wants to save their life will lose it, but whoever loses their life for me will find it. 26 What good will it be for someone to gain the whole world, yet forfeit their soul? Or what can anyone give in exchange for their soul? 27 For the Son of Man is going to come in his Father’s glory with his angels, and then he will reward each person according to what they have done.
18 6 “If anyone causes one of these little ones—those who believe in me—to stumble, it would be better for them to have a large millstone hung around their neck and to be drowned in the depths of the sea. 7 Woe to the world because of the things that cause people to stumble! Such things must come, but woe to the person through whom they come! 8 If your hand or your foot causes you to stumble, cut it off and throw it away. It is better for you to enter life maimed or crippled than to have two hands or two feet and be thrown into eternal fire. 9 And if your eye causes you to stumble, gouge it out and throw it away. It is better for you to enter life with one eye than to have two eyes and be thrown into the fire of hell.
18:23 “Therefore, the kingdom of heaven is like a king who wanted to settle accounts with his servants. 24 As he began the settlement, a man who owed him ten thousand bags of gold was brought to him. 25 Since he was not able to pay, the master ordered that he and his wife and his children and all that he had be sold to repay the debt.
26 “At this the servant fell on his knees before him. ‘Be patient with me,’ he begged, ‘and I will pay back everything.’ 27 The servant’s master took pity on him, canceled the debt and let him go.
28 “But when that servant went out, he found one of his fellow servants who owed him a hundred silver coins. He grabbed him and began to choke him. ‘Pay back what you owe me!’ he demanded.
29 “His fellow servant fell to his knees and begged him, ‘Be patient with me, and I will pay it back.’
30 “But he refused. Instead, he went off and had the man thrown into prison until he could pay the debt. 31 When the other servants saw what had happened, they were outraged and went and told their master everything that had happened.
32 “Then the master called the servant in. ‘You wicked servant,’ he said, ‘I canceled all that debt of yours because you begged me to. 33 Shouldn’t you have had mercy on your fellow servant just as I had on you?’ 34 In anger his master handed him over to the jailers to be tortured, until he should pay back all he owed.
35 “This is how my heavenly Father will treat each of you unless you forgive your brother or sister from your heart.”
22:1 Jesus spoke to them again in parables, saying: 2 “The kingdom of heaven is like a king who prepared a wedding banquet for his son. 3 He sent his servants to those who had been invited to the banquet to tell them to come, but they refused to come.
4 “Then he sent some more servants and said, ‘Tell those who have been invited that I have prepared my dinner: My oxen and fattened cattle have been butchered, and everything is ready. Come to the wedding banquet.’
5 “But they paid no attention and went off—one to his field, another to his business. 6 The rest seized his servants, mistreated them and killed them. 7 The king was enraged. He sent his army and destroyed those murderers and burned their city.
8 “Then he said to his servants, ‘The wedding banquet is ready, but those I invited did not deserve to come. 9 So go to the street corners and invite to the banquet anyone you find.’ 10 So the servants went out into the streets and gathered all the people they could find, the bad as well as the good, and the wedding hall was filled with guests.
11 “But when the king came in to see the guests, he noticed a man there who was not wearing wedding clothes. 12 He asked, ‘How did you get in here without wedding clothes, friend?’ The man was speechless.
13 “Then the king told the attendants, ‘Tie him hand and foot, and throw him outside, into the darkness, where there will be weeping and gnashing of teeth.’
14 “For many are invited, but few are chosen.”
23 13 “Woe to you, teachers of the law and Pharisees, you hypocrites! You shut the door of the kingdom of heaven in people’s faces. You yourselves do not enter, nor will you let those enter who are trying to.
23:15 “Woe to you, teachers of the law and Pharisees, you hypocrites! You travel over land and sea to win a single convert, and when you have succeeded, you make them twice as much a child of hell as you are.
23:33 “You snakes! You brood of vipers! How will you escape being condemned to hell? 34 Therefore I am sending you prophets and sages and teachers. Some of them you will kill and crucify; others you will flog in your synagogues and pursue from town to town. 35 And so upon you will come all the righteous blood that has been shed on earth, from the blood of righteous Abel to the blood of Zechariah son of Berekiah, whom you murdered between the temple and the altar. 36 Truly I tell you, all this will come on this generation.
24 45 “Who then is the faithful and wise servant, whom the master has put in charge of the servants in his household to give them their food at the proper time? 46 It will be good for that servant whose master finds him doing so when he returns. 47 Truly I tell you, he will put him in charge of all his possessions. 48 But suppose that servant is wicked and says to himself, ‘My master is staying away a long time,’ 49 and he then begins to beat his fellow servants and to eat and drink with drunkards. 50 The master of that servant will come on a day when he does not expect him and at an hour he is not aware of. 51 He will cut him to pieces and assign him a place with the hypocrites, where there will be weeping and gnashing of teeth.
25 14 “Again, it will be like a man going on a journey, who called his servants and entrusted his wealth to them. 15 To one he gave five bags of gold, to another two bags, and to another one bag, each according to his ability. Then he went on his journey. 16 The man who had received five bags of gold went at once and put his money to work and gained five bags more. 17 So also, the one with two bags of gold gained two more. 18 But the man who had received one bag went off, dug a hole in the ground and hid his master’s money.
19 “After a long time the master of those servants returned and settled accounts with them. 20 The man who had received five bags of gold brought the other five. ‘Master,’ he said, ‘you entrusted me with five bags of gold. See, I have gained five more.’
21 “His master replied, ‘Well done, good and faithful servant! You have been faithful with a few things; I will put you in charge of many things. Come and share your master’s happiness!’
22 “The man with two bags of gold also came. ‘Master,’ he said, ‘you entrusted me with two bags of gold; see, I have gained two more.’
23 “His master replied, ‘Well done, good and faithful servant! You have been faithful with a few things; I will put you in charge of many things. Come and share your master’s happiness!’
24 “Then the man who had received one bag of gold came. ‘Master,’ he said, ‘I knew that you are a hard man, harvesting where you have not sown and gathering where you have not scattered seed. 25 So I was afraid and went out and hid your gold in the ground. See, here is what belongs to you.’
26 “His master replied, ‘You wicked, lazy servant! So you knew that I harvest where I have not sown and gather where I have not scattered seed? 27 Well then, you should have put my money on deposit with the bankers, so that when I returned I would have received it back with interest.
28 “‘So take the bag of gold from him and give it to the one who has ten bags. 29 For whoever has will be given more, and they will have an abundance. Whoever does not have, even what they have will be taken from them. 30 And throw that worthless servant outside, into the darkness, where there will be weeping and gnashing of teeth.’
31 “When the Son of Man comes in his glory, and all the angels with him, he will sit on his glorious throne. 32 All the nations will be gathered before him, and he will separate the people one from another as a shepherd separates the sheep from the goats. 33 He will put the sheep on his right and the goats on his left.
34 “Then the King will say to those on his right, ‘Come, you who are blessed by my Father; take your inheritance, the kingdom prepared for you since the creation of the world. 35 For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, 36 I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’
37 “Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 38 When did we see you a stranger and invite you in, or needing clothes and clothe you? 39 When did we see you sick or in prison and go to visit you?’
40 “The King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me.’
41 “Then he will say to those on his left, ‘Depart from me, you who are cursed, into the eternal fire prepared for the devil and his angels. 42 For I was hungry and you gave me nothing to eat, I was thirsty and you gave me nothing to drink, 43 I was a stranger and you did not invite me in, I needed clothes and you did not clothe me, I was sick and in prison and you did not look after me.’
44 “They also will answer, ‘Lord, when did we see you hungry or thirsty or a stranger or needing clothes or sick or in prison, and did not help you?’
45 “He will reply, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for me.’
46 “Then they will go away to eternal punishment, but the righteous to eternal life.”
...and one from Luke 16
19 “Now there was a rich man, and he habitually dressed in purple and fine linen, joyously living in splendor every day. 20 And a poor man named Lazarus was laid at his gate, covered with sores, 21 and longing to be fed with the crumbs which were falling from the rich man’s table; besides, even the dogs were coming and licking his sores. 22 Now the poor man died and was carried away by the angels to Abraham’s bosom; and the rich man also died and was buried. 23 In Hades he lifted up his eyes, being in torment, and *saw Abraham far away and Lazarus in his bosom. 24 And he cried out and said, ‘Father Abraham, have mercy on me, and send Lazarus so that he may dip the tip of his finger in water and cool off my tongue, for I am in agony in this flame.’ 25 But Abraham said, ‘Child, remember that during your life you received your good things, and likewise Lazarus bad things; but now he is being comforted here, and you are in agony. 26 And besides all this, between us and you there is a great chasm fixed, so that those who wish to come over from here to you will not be able, and that none may cross over from there to us.’ 27 And he said, ‘Then I beg you, father, that you send him to my father’s house— 28 for I have five brothers—in order that he may warn them, so that they will not also come to this place of torment.’ 29 But Abraham *said, ‘They have Moses and the Prophets; let them hear them.’ 30 But he said, ‘No, father Abraham, but if someone goes to them from the dead, they will repent!’ 31 But he said to him, ‘If they do not listen to Moses and the Prophets, they will not be persuaded even if someone rises from the dead.’”