Luke 22:47

While He was still speaking there came a crowd with Judas, already mentioned as one of the Twelve, at their head. He went up to Jesus to kiss Him.

Matthew 26:14-16

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

Matthew 26:45-56

Then He came to the disciples and said, "Sleep on and rest. See, the moment is close at hand when the Son of Man is to be betrayed into the hands of sinful men.

Mark 14:10

But Judas Iscariot, already mentioned as one of the Twelve, went to the High Priests to betray Jesus to them.

Mark 14:41-50

A third time He came, and then He said, "Sleep on and rest. Enough! the hour has come. Even now they are betraying the Son of Man into the hands of sinful men.

Luke 22:3-6

Satan, however, entered into Judas (the man called Iscariot)

John 18:2-11

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

Acts 1:16-18

"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.

Treasury of Scripture Knowledge

Summary

And while he yet spake, behold a multitude, and he that was called Judas, one of the twelve, went before them, and drew near unto Jesus to kiss him.

Bible References

While

Matthew 26:45
Then He came to the disciples and said, "Sleep on and rest. See, the moment is close at hand when the Son of Man is to be betrayed into the hands of sinful men.
Mark 14:41
A third time He came, and then He said, "Sleep on and rest. Enough! the hour has come. Even now they are betraying the Son of Man into the hands of sinful men.
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.