Mark 3:19
and Judas Iscariot, who betrayed him.
Matthew 26:14-16
Then one of the twelve, whose name was Judas Iscariot, went to the chief priests
Matthew 26:47
While he was still speaking, Judas came, one of the twelve, and with him a great crowd with swords and clubs, from the chief priests and the elders of the people.
Matthew 27:3-5
Then when Judas, his betrayer, saw that Jesus was condemned, he changed his mind and brought back the thirty pieces of silver to the chief priests and the elders,
John 6:64
But there are some of you who do not believe." (For Jesus knew from the beginning who those were who did not believe, and who it was who would betray him.)
John 6:71
He spoke of Judas the son of Simon Iscariot, for he, one of the Twelve, was going to betray him.
John 12:4-6
But Judas Iscariot, one of his disciples (he who was about to betray him), said,
John 13:2
During supper, when the devil had already put it into the heart of Judas Iscariot, Simon's son, to betray him,
John 13:26-30
Jesus answered, "It is he to whom I will give this morsel of bread when I have dipped it." So when he had dipped the morsel, he gave it to Judas, the son of Simon Iscariot.
Acts 1:16-25
"Brothers, the Scripture had to be fulfilled, which the Holy Spirit spoke beforehand by the mouth of David concerning Judas, who became a guide to those who arrested Jesus.