Exodus 8:22; Exodus 9:4; Exodus 11:7; Exodus 33:16

22 "But on that day I will set apart the land of Goshen, where My people are living, so that no swarms of flies will be there, in order that you may know that I, the LORD , am in the midst of the land.

4 "But the LORD will make a distinction between the livestock of Israel and the livestock of Egypt, so that nothing will die of all that belongs to the sons of Israel.""'

7 'But against any of the sons of Israel a dog will not even bark , whether against man or beast, that you may understand how the LORD makes a distinction between Egypt and Israel.'

16 "For how then can it be known that I have found favor in Your sight, I and Your people? Is it not by Your going with us, so that we, I and Your people, may be distinguished from all the other people who are upon the face of the earth?"