Exodus 7:10
Moses and Aaron went in to Pharaoh, and they did so, as the LORD had commanded: and Aaron cast down his rod before Pharaoh and before his servants, and it became a serpent.
Exodus 4:3
He said, "Throw it on the ground." He threw it on the ground, and it became a serpent; and Moses ran away from it.
Amos 9:3
Though they hide themselves in the top of Carmel, I will search and take them out there; and though they be hid from my sight in the bottom of the sea, there I will command the serpent, and it will bite them.
Mark 16:18
they will pick up serpents; and if they drink any deadly thing, it will not harm them;[note: see Wallace, Exegetical Syntax, 403?6, whether promise or prediction] they will lay hands on the sick, and they will recover."
Luke 10:19
Look, I have given you authority to tread on serpents and scorpions, and over all the power of the enemy, and nothing will in any way hurt you.