Êxodo 4:9

9 Se nem ainda crerem mediante estes dois sinais, nem te ouvirem a voz, tomarás das águas do rio e as derramarás na terra seca; e as águas que do rio tomares tornar-se-ão em sangue sobre a terra.

9 And it shall come to pass, if they will not believe even these two signs, neither hearken unto thy voice, that thou shalt take of the water of the river, and pour it upon the dry land: and the water which thou takest out of the river shall become blood upon the dry land.