John 6:71

He alluded to Judas, the son of Simon the Iscariot. For he it was who, though one of the Twelve, was afterwards to betray Him.

Matthew 26:14-16

At that time one of the Twelve, the one called Judas Iscariot, went to the High Priests

Matthew 27:3-5

Then when Judas, who had betrayed Him, saw that He was condemned, smitten with remorse he brought back the thirty shekels to the High Priests and Elders

John 13:26

"It is the one," answered Jesus, "for whom I shall dip this piece of bread and to whom I shall give it." Accordingly He dipped the piece of bread, and took it and gave it to Judas, the son of the Iscariot Simon.

John 18:2-6

Now Judas also, who at that very time was betraying Him, knew the place, for Jesus had often resorted there with His disciples.

Acts 1:16-20

"Brethren, it was necessary that the Scripture should be fulfilled--the prediction, I mean, which the Holy Spirit uttered by the lips of David, about Judas, who acted as guide to those who arrested Jesus.

Acts 2:23

delivered up through God's settled purpose and foreknowledge--you by the hands of Gentiles have nailed to a cross and have put to death.

Jude 1:4

For certain persons have crept in unnoticed--men spoken of in ancient writings as pre-destined to this condemnation--ungodly men, who pervert the grace of our God into an excuse for immorality, and disown Jesus Christ, our only Sovereign and Lord.

Treasury of Scripture Knowledge

Summary

He spake of Judas Iscariot the son of Simon: for he it was that should betray him, being one of the twelve.

Bible References

Being

John 18:2
Now Judas also, who at that very time was betraying Him, knew the place, for Jesus had often resorted there with His disciples.
Matthew 26:14
At that time one of the Twelve, the one called Judas Iscariot, went to the High Priests
Matthew 27:3
Then when Judas, who had betrayed Him, saw that He was condemned, smitten with remorse he brought back the thirty shekels to the High Priests and Elders