3 He said, “Throw it on the ground.” He threw it on the ground, and it became a snake; and Moses ran away from it.
Exodus 4:3 Cross References - WEB
Exodus 4:17
17 You shall take this rod in your hand, with which you shall do the signs.”
Exodus 7:10-15
10 Moses and Aaron went in to Pharaoh, and they did so, as Yahweh had commanded. Aaron cast down his rod before Pharaoh and before his servants, and it became a serpent.
11 Then Pharaoh also called for the wise men and the sorcerers. They also, the magicians of Egypt, did the same thing with their enchantments.
12 For they each cast down their rods, and they became serpents; but Aaron’s rod swallowed up their rods.
13 Pharaoh’s heart was hardened, and he didn’t listen to them, as Yahweh had spoken.
14 Yahweh said to Moses, “Pharaoh’s heart is stubborn. He refuses to let the people go.
15 Go to Pharaoh in the morning. Behold, he is going out to the water. You shall stand by the river’s bank to meet him. You shall take the rod which was turned to a serpent in your hand.
Amos 5:19
19 As if a man fled from a lion, and a bear met him; Or he went into the house and leaned his hand on the wall, and a snake bit him.