blood money in christianity

In the Christian Bible, the term is used to refer to the thirty pieces of silver Judas Iscariot receives in exchange for revealing the identity of Jesus Christ to the forces sent by the Pharisees and/or the Sanhedrin. After the crucifixion of Christ, Judas returns the payment to the chief priests, who “took the silver pieces and said, ‘It is not lawful for to put them into the treasury, because it is the price of blood.’”