Matthew 26:14

Then one of the twelve, who was called Judas Iscariot, having gone to the chief priests,

Matthew 10:4

Simon the Canaanite, and Judas Iscariot, who also betrayed him.

Luke 22:3-6

And Satan entered into Judas who was called Iscariot, being of the number of the twelve.

John 13:2

And supper having occurred, the devil having now put into the heart of Judas Iscariot, Simon's son, that he would betray him,

John 13:30

Therefore having received the morsel, straightaway that man went out, and it was night.

Matthew 26:25

And Judas (the man who betrayed him) having answered, he said, Is it I, Rabbi? He says to him, Thou have said.

Matthew 26:47

And while he was still speaking, lo, Judas, one of the twelve, came, and with him a great multitude with swords and clubs from the chief priest and elders of the people.

Matthew 27:3

Then Judas, who betrayed him, after seeing that he was condemned, having repented, he brought back the thirty silver pieces to the chief priests and elders,

Mark 14:10-11

And Judas Iscariot, one of the twelve, went away to the chief priests, so that he might betray him to them.

John 6:70-71

Jesus answered them, Did I not choose you the twelve, and one of you is a devil?

John 12:4

Therefore one of his disciples, Judas Iscariot, son of Simon, the man who was going to betray him, says,

John 18:2

Now Judas, the man betraying him, had also known the place, because Jesus also often gathered there with his disciples.

Acts 1:16

Men, brothers, it was necessary for this Scripture to be fulfilled, which the Holy Spirit foretold through the mouth of David about Judas, who became a guide to those who arrested Jesus,

Treasury of Scripture Knowledge

Summary

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

Bible References

One

Mark 14:10
And Judas Iscariot, one of the twelve, went away to the chief priests, so that he might betray him to them.
Luke 22:3
And Satan entered into Judas who was called Iscariot, being of the number of the twelve.
John 13:2
And supper having occurred, the devil having now put into the heart of Judas Iscariot, Simon's son, that he would betray him,