Exodus 7:12-14

Darby Translation

¹² they cast down every man his staff, and they became serpents; but Aaron's staff swallowed up their staves.

¹³ And Pharaoh's heart was stubborn, and he hearkened not to them, as Jehovah had said.

¹⁴ And Jehovah said to Moses, Pharaoh's heart is hardened: he refuseth to let the people go.