Matthew 27:2-10

They put him in chains, led him off, and handed him over to Pilate, the Roman governor. When Judas, the traitor, learned that Jesus had been condemned, he repented and took back the thirty silver coins to the chief priests and the elders. “I have sinned by betraying an innocent man to death!” he said. “What do we care about that?” they answered. “That is your business!” Judas threw the coins down in the Temple and left; then he went off and hanged himself. The chief priests picked up the coins and said, “This is blood money, and it is against our Law to put it in the Temple treasury.” After reaching an agreement about it, they used the money to buy Potter's Field, as a cemetery for foreigners. That is why that field is called “Field of Blood” to this very day. Then what the prophet Jeremiah had said came true: “They took the thirty silver coins, the amount the people of Israel had agreed to pay for him, and used the money to buy the potter's field, as the Lord had commanded me.”