But against any of the children of Israel shall not a dog move his tongue, against man or beast: that you may know how that the LORD does put a difference between the Egyptians and Israel.
And the blood shall be to you for a token on the houses where you are: and when I see the blood, I will pass over you, and the plague shall not be on you to destroy you, when I smite the land of Egypt.
And also I have withheld the rain from you, when there were yet three months to the harvest: and I caused it to rain on one city, and caused it not to rain on another city: one piece was rained on, and the piece whereupon it rained not withered.