Moses was tending his father-in-law's flock near Horeb, the mountain of God. There, the angel of the Lord appeared to Moses in a burning bush that was not consumed by the fire. Curious, Moses went to examine the strange sight. God called out to Moses from the bush and told him to remove his sandals as he was standing on holy ground. God then identified himself as the God of Abraham, Isaac, and Jacob. Moses hid his face in fear upon seeing God.