Matthew 27:4

And when they had bound him, they led him away, and delivered him to Pontius Pilate the governor.

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, and went and hanged himself.

And the chief priests took the silver pieces, and said, It is not lawful for to put them into the treasury, because it is the price of blood.