Judas agreed to put Jesus into his enemies’ hands.

Luke 22:1-6

22 It was now almost time to celebrate the festival of Unleavened Bread, which began with the Passover festival. 2 The chief priests and the men who taught the Jewish laws were seeking a way to kill Jesus. But they wanted to do it secretly, because they were afraid that if they did not do it secretly, the people might riot.

3 Then even though Judas, who was called the man from Kerioth village, was one of the twelve disciples, Satan entered him. 4 Judas went and conferred with the chief priests and the officers of the Temple guards. He discussed with them how he could enable them to seize Jesus. 5 They were pleased that he wanted to do that. They offered to give him money for doing it. 6 So he agreed, and they gave him the money. Then he tried to find an opportunity to enable them to seize Jesus when there was no crowd around him.