Exodus 7:19-20

19Then the LordH3068 saidH559 to MosesH4872, “SayH559 to AaronH175, ‘TakeH3947 your staffH4294 and 1stretchH5186 out your handH3027 overH5921 the watersH4325 of EgyptH4714, overH5921 their riversH5104, overH5921 their 2streamsH2975, and overH5921 their poolsH98, and overH5921 allH3605 their reservoirsH4723 of waterH4325, that they may becomeH1961 bloodH1818; and there will be bloodH1818 throughout allH3605 the landH776 of EgyptH4714, both in vessels of woodH6086 and in vessels of stoneH68.’”

20So MosesH4872 and AaronH175 didH6213 evenH3651 as the LordH3068 had commandedH6680. And he liftedH7311 up 34the staffH4294 and struckH5221 the waterH4325 that was in the NileH2975, in the sightH5869 of PharaohH6547 and in the sightH5869 of his servantsH5650, and 5allH3605 the waterH4325 that was in the NileH2975 was turnedH2015 to bloodH1818.