Exodus 7:9

9“When Pharaoh tells you, ‘Perform a miracle,’ you are to say to Aaron, ‘Take your staff and throw it down before Pharaoh,’ and it will become a serpent.7:9 Hebrew tannin; here and in verse 10, in contrast to Moses’ staff, which became a nachashin Exodus 4:3 and was noted again in Exodus 7:15”