Psalm 109:6
Set a wicked man over him. Let an adversary stand at his right hand.
Zechariah 3:1
He showed me Joshua the high priest standing before the angel of Yahweh, and Satan standing at his right hand to be his adversary.
Matthew 5:25
Agree with your adversary quickly, while you are with him in the way; lest perhaps the prosecutor deliver you to the judge, and the judge deliver you to the officer, and you be cast into prison.
Matthew 27:4
saying, "I have sinned in that I betrayed innocent blood." But they said, "What is that to us? You see to it."
John 13:2
During supper, the devil having already put into the heart of Judas Iscariot, Simon's son, to betray him,
John 13:27
After the piece of bread, then Satan entered into him. Then Jesus said to him, "What you do, do quickly."