The leaders of Shechem gave Abimelech seventy pieces of silver, one for each of Gideon’s other sons. And when we recall that a slave was often sold for thirty pieces of silver, if not more (Exodus 21:32; Leviticus 27:3–7)), we see how cheaply the lives of Abimelech’s brothers were paid for. They are worthless to him. Each is worth one thirtieth of the value of a slave.
4 And they gave him seventy pieces of silver out of the house of Baal-berith with which Abimelech hired worthless and reckless fellows, who followed him.