Matthew 27:3

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

Job 20:5

the praise of the ungodly hath been short, and that the joy of the hypocrites continued but the twinkling of an eye?

Job 20:15-29

The riches that he devoured, shall he vomit out again; for God shall draw them out of his belly.

Matthew 26:14-16

Then one of the twelve, called Judas Iscariot, went unto the chief priests,

Matthew 26:47-50

While he yet spake, Lo, Judas, one of the twelve, came: and with him a great multitude with swords and staves, which were sent from the chief priests and elders of the people.

Mark 14:10-11

And Judas Iscariot, one of the twelve, went away unto the high priests, to betray him unto them.

Mark 14:43-46

And immediately, while he yet spake, came Judas, one of the twelve, and with him a great number of people with swords and staves from the high priests and scribes and elders.

Luke 22:2-6

and the high priests, and scribes sought how to kill him, but they feared the people.

Luke 22:47-48

While he yet spake: behold, there came a company: and he that was called Judas, one of the twelve, went before them, and pressed nigh unto Jesus to kiss him.

John 13:2

And when supper was ended, after that, the devil had put in the heart of Judas Iscariot, Simon's son, to betray him.

John 13:27

And after the sop, Satan entered into him. Then said Jesus unto him, "That thou dost, do quickly."

John 18:3

Judas then after he had received a bond of men, and ministers of the high priests, and of the Pharisees, came thither with lanterns, and firebrands, and weapons.

2 Corinthians 7:10

For ye sorrowed godly: so that in nothing were ye hurt by us. For godly sorrow causeth repentance, unto salvation not to be repented of: when worldly sorrow causeth 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 praise of the ungodly hath been short, and that the joy of the hypocrites continued but the twinkling of an eye?
2 Corinthians 7:10
For ye sorrowed godly: so that in nothing were ye hurt by us. For godly sorrow causeth repentance, unto salvation not to be repented of: when worldly sorrow causeth death.

General references

Exodus 32:35
And the LORD plagued the people, because they made the calf; which Aaron made.
Deuteronomy 27:25
"'Cursed be he that taketh a reward to slay innocent blood.' And all the people shall say, 'Amen.'
Mark 6:26
And the king was sorry. Yet for his oath's sake, and for their sakes which sat at supper also, he would not put her beside her purpose.
Luke 14:30
saying, 'This man began to build, and was not able to make an end.'