Exodus 4:9
But if they will not even believe these two signs, nor hear thy voice: take of the river water, and pour it out upon the dry land, and whatsoever thou drawest out of the river, shall be turned into blood.
But if they will not even believe these two signs, nor hear thy voice: take of the river water, and pour it out upon the dry land, and whatsoever thou drawest out of the river, shall be turned into blood.