But against any of the children of Israel shall not a dog move his tongue, against man or beast: that ye may know how that Yahweh doth put a difference between the Egyptians and Israel.
Then the magicians said unto Pharaoh, This is the finger of Elohim: and Pharaoh's heart was hardened, and he hearkened not unto them; as Yahweh had said.
And I will sever in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there; to the end thou mayest know that I am Yahweh in the midst of the earth.
For who maketh thee to differ from another? and what hast thou that thou didst not receive? now if thou didst receive it, why dost thou boast, as if thou hadst not received it?