Matthew 26:14

Then one of the twelve, the one named Judas Iscariot, went to the chief priests

Matthew 10:4

Simon the Zealot, and Judas Iscariot--the one who also betrayed him.

Luke 22:3-6

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

John 13:2

And [as] a dinner was taking place, [when] the devil had already put into the heart of Judas [son] of Simon Iscariot that he should betray him,

John 13:30

So [after he] had taken the piece of bread, he went out immediately. And it was night.

Matthew 26:25

And Judas, the one who was betraying him, answered [and] said, "{Surely I am not he, am I}, Rabbi?" He said to him, "You have said [it]."

Matthew 26:47

And [while] he was still speaking, behold, Judas--one of the twelve--arrived, and with him a large crowd with swords and clubs, from the chief priests and elders of the people.

Matthew 27:3

Then [when] Judas, the one who had betrayed him, saw that he had been condemned, he regretted [what he had done] [and] returned the thirty silver coins to the chief priests and elders,

Mark 14:10-11

And Judas Iscariot, who [was] one of the twelve, went to the chief priests in order to betray him to them.

John 6:70-71

Jesus replied to them, "Did I not choose you, the twelve, and one of you is the devil?"

John 12:4

But Judas Iscariot, one of his disciples (the one who was going to betray him) said,

John 18:2

(Now Judas, the one who betrayed him, also knew about the place, because Jesus often gathered there with his disciples.)

Acts 1:16

"Men [and] brothers, it was necessary [that] the scripture be fulfilled, which the Holy Spirit proclaimed beforehand through the mouth of David concerning 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, who [was] one of the twelve, went to the chief priests in order to betray him to them.
Luke 22:3
And Satan entered into Judas, the one called Iscariot, who was of the number of the twelve.
John 13:2
And [as] a dinner was taking place, [when] the devil had already put into the heart of Judas [son] of Simon Iscariot that he should betray him,