Exodus 7:12 YLT

¹⁰  And Moses goeth in -- Aaron also -- unto Pharaoh, and they do so as Jehovah hath commanded; and Aaron casteth his rod before Pharaoh, and before his servants, and it becometh a monster.

¹¹  And Pharaoh also calleth for wise men, and for sorcerers; and the scribes of Egypt, they also, with their flashings, do so,

¹²  and they cast down each his rod, and they become monsters, and the rod of Aaron swalloweth their rods;

¹³  and the heart of Pharaoh is strong, and he hath not hearkened unto them, as Jehovah hath spoken.

¹⁴  And Jehovah saith unto Moses, 'The heart of Pharaoh hath been hard, he hath refused to send the people away;