Matthew 27:3

Then Judas, who delivered him up, seeing that he had been condemned, filled with remorse, returned the thirty pieces of silver to the chief priests and the elders,

Job 20:5

The exultation of the wicked is short, and the joy of the ungodly man but for a moment?

Job 20:15-29

He hath swallowed down riches, but he shall vomit them up again: God shall cast them out of his belly.

Matthew 26:14-16

Then one of the twelve, he who was called Judas Iscariote, went to the chief priests

Matthew 26:47-50

And while he was yet speaking, behold, Judas, one of the twelve, came, and with him a great crowd with swords and sticks from the chief priests and elders of the people.

Mark 14:10-11

And Judas Iscariote, one of the twelve, went away to the chief priests that he might deliver him up to them;

Mark 14:43-46

And immediately, while he was yet speaking, Judas comes up, being one of the twelve, and with him a great crowd, with swords and sticks, from the chief priests and the scribes and the elders.

Luke 22:2-6

and the chief priests and the scribes sought how they might kill him; for they feared the people.

Luke 22:47-48

As he was yet speaking, behold, a crowd, and he that was called Judas, one of the twelve, went on before them, and drew near to Jesus to kiss him.

John 13:2

And during supper, the devil having already put it into the heart of Judas son of Simon, Iscariote, that he should deliver him up,

John 13:27

And, after the morsel, then entered Satan into him. Jesus therefore says to him, What thou doest, do quickly.

John 18:3

Judas therefore, having got the band, and officers of the chief priests and Pharisees, comes there with lanterns and torches and weapons.

2 Corinthians 7:10

For grief according to God works repentance to salvation, never to be regretted; but the grief of the world 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,

Bible References

Repented

Job 20:5
The exultation of the wicked is short, and the joy of the ungodly man but for a moment?
2 Corinthians 7:10
For grief according to God works repentance to salvation, never to be regretted; but the grief of the world works death.

General references

Exodus 32:35
And Jehovah smote the people, because they made the calf, which Aaron had made.
Deuteronomy 27:25
Cursed be he that taketh reward to smite mortally shedding innocent blood! And all the people shall say, Amen.
Mark 6:26
And the king, while made very sorry, on account of the oaths and those lying at table with him would not break his word with her.
Luke 14:30
saying, This man began to build and was not able to finish?