The same night Gideon is commissioned by the Angel of the LORD, he is given further instructions.  Next, he must tear down the altar of Baal and the Asherah that belong to his father.  Then, and only then, can he set up an altar to the LORD in its stead.   This action will mean that Gideon has crossed a point of no return.  Though he is afraid, his obedience will bring about a surprising turn of events.