God told Moses to throw the staff in his hand on the ground, and when he did so, it becam a snake. God tells him to catch that tail. He threw away the staff, relying on and it turned out to be a snake. If you grab the snake's tail, the snake might bite you, but when Moses obeyed and grabbed the snake's tail, it immediately turned back into a staff. This is a word that is connected to Moses’ call..
