But against any of the children of Yisra'el a dog won't even bark or move its tongue, against man or animal; that you may know that the LORD makes a distinction between the Egyptians and Yisra'el.
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 there shall no plague be on you to destroy you, when I strike the land of Egypt.
The LORD will make a distinction between the livestock of Yisra'el and the livestock of Egypt; and there shall nothing die of all that belongs to the children of Yisra'el.*'*
*I also 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 place was rained on, and the piece where it didn't rain withered.