What did he do with the money?

Matthew: “Then Judas, which had betrayed him, when he saw that he was condemned, repented himself, and brought again the thirty pieces of silver to the chief priests and elders.... And he cast down the pieces of silver in the temple and departed” (xxvii, 3–5).

Peter: “Now this man [Judas] purchased a field with the reward of iniquity” (Acts i, 18).