Matthew 27:3-6 NLT

3 When Judas, who had betrayed him, realized that Jesus had been condemned to die, he was filled with remorse. So he took the thirty pieces of silver back to the leading priests and other leaders.
4 "I have sinned," he declared, "for I have betrayed an innocent man." "What do we care?" they retorted. "That's your problem."
5 Then Judas threw the money onto the floor of the Temple and went out and hanged himself.
6 The leading priests picked up the money. "We can't put it in the Temple treasury," they said, "since it's against the law to accept money paid for murder."