Exodus 7:9-11

Complete Jewish Bible

⁹ “When Pharaoh says to you, ‘Perform a miracle,’ tell Aharon to take his staff and throw it down in front of Pharaoh, so that it can become a snake.” ¹⁰ Moshe and Aharon went in to Pharaoh and did this, as Adonai had ordered — Aharon threw down his staff in front of Pharaoh and his servants, and it turned into a snake. ¹¹ But Pharaoh in turn called for the sages and sorcerers; and they too, the magicians of Egypt, did the same thing, making use of their secret arts.