Matthew 27:3-4

ISV(i) 3 The Death of Judas
Then Judas, who had betrayed him, regretted what had happened when he saw that Jesus was condemned. He brought the 30 pieces of silver back to the high priests and elders, 4 saying, “I have sinned by betraying innocent blood.”
But they replied, “What do we care? Attend to that yourself.”