Matthew 26:14

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

Matthew 10:4

Simon the Zealot, and Judas Iscariot who betrayed him.

Luke 22:3-6

Satan however, entered into Judas (the man called Iscariot), who was one of the twelve.

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 13:30

When he had taken the piece of bread, Judas went out immediately; and it was night.

Matthew 26:25

In answer, Judas, who betrayed him, said, "Surely it is not I, Rabbi?" He said to him, "Is it not?"

Matthew 26:47

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.

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.

Mark 14:10-11

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

John 6:70-71

In reply Jesus said to them. "Have I not chosen you, the Twelve? And yet even of you one is an enemy."

John 12:4

Then said Judas Iscariot, one of his disciples, who was about to betray him,

John 18:2

Judas the Traitor also knew this place; for Jesus and his disciples often met there.

Acts 1:16

"Men and brothers, it was necessary for the Scripture to be fulfilled which the Holy Spirit uttered beforehand by the lips of David in regard to Judas who acted as 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
Now Judas Iscariot, one of the Twelve, went away to the high priests to betray Jesus to them;
Luke 22:3
Satan however, entered into Judas (the man called Iscariot), who was one of the twelve.
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,