Exodus 4:7-9

New Revised Standard Version, Anglicised Catholic Edition

⁷ Then God said, ‘Put your hand back into your cloak’—so he put his hand back into his cloak, and when he took it out, it was restored like the rest of his body— ⁸ ‘If they will not believe you or heed the first sign, they may believe the second sign. ⁹ If they will not believe even these two signs or heed you, you shall take some water from the Nile and pour it on the dry ground; and the water that you shall take from the Nile will become blood on the dry ground.’