LXX2012(i)
8 And if they will not believe you, nor listen to the voice of the first sign, they will believe you [because] of the voice of the second sign.
9 And it shall come to pass if they will not believe you for these two signs, and will not listen to your voice, that you shall take of the water of the river and pour it upon the dry land, and the water which you shall take from the river shall be blood upon the dry land.