Then the angel of Yahweh put forth the end of the staff that was in his hand, and touched the flesh and the unleavened cakes; and there went up fire out of the rock, and consumed the flesh and the unleavened cakes; and the angel of Yahweh departed out of his sight.
This miracle strengthened Gideon’s faith greatly. In building an altar to Yahweh, Gideon acknowledged Him as his God.