Matthew 27:3

Then when Judas, his betrayer, saw that he was condemned, he repented and brought back the thirty pieces of silver to the chief priests and elders.

Matthew 26:14-16

It was then that one of the Twelve, he who was called Judas Iscariot,

Matthew 26:47-50

Barely had he spoken these words when Judas, one of the Twelve, appeared, accompanied by a great crowd of men with swords and staves, from the chief priests and elders of the people.

Mark 14:10-11

Now Judas Iscariot, one of the Twelve, went away to the high priests to betray Jesus to them;

Mark 14:43-46

At that instant, while he was yet speaking, Judas, one of the Twelve, came up, and with him a mob armed with swords and clubs, sent by the high priests and Scribes and elders.

Luke 22:2-6

The high priest and the Scribes continually sought means to put him to death.

Luke 22:47-48

While he was still speaking there came a crowd, and he who was called Judas, one of the Twelve, was leading them. He came near to Jesus in order to kiss him,

John 13:2

So while supper was proceeding, and the devil had already put it into the heart of Judas Iscariot, the son of Simon, to betray him,

John 13:27

So when he had dipped the bread, he took it and gave it to Judas Iscariot, son of Simon. And after he had received the piece of bread, Satan entered into him. "What you do, do quickly," said Jesus.

John 18:3

So after getting troops and some Temple police from the chief priests and Pharisees, Judas came there with lanterns and torches and weapons.

2 Corinthians 7:10

For your pain came from God, and so you took no harm from me. For the pain which is from God works repentance leading to salvation, a repentance never to be regretted. But the world's pain works death.

Treasury of Scripture Knowledge

Summary

Then Judas, which had betrayed him, when he saw that he was condemned, repented himself, and brought again the thirty pieces of silver to the chief priests and elders,

General references

Bible References

Repented

2 Corinthians 7:10
For your pain came from God, and so you took no harm from me. For the pain which is from God works repentance leading to salvation, a repentance never to be regretted. But the world's pain works death.

General references

Mark 6:26
Then the king was exceedingly sorry; yet on account of his oaths and his guests he was unwilling to disappoint her.
Luke 14:30
"'This fellow began to build and could not finish.'