'Silver pieces' in the Bible

"What will you give me for betraying him to you?" And they weighed out for him thirty silver pieces.

Then Judas his betrayer saw he was condemned, and repented; he brought back the thirty silver pieces to the high priests and elders,

Then he flung down the silver pieces in the temple and went off and hung himself.

Then the word spoken by the prophet Jeremiah was fulfilled: and I took the thirty silver pieces, the price of him who had been priced, whom they had priced and expelled from the sons of Israel;