And David said to Achish, If I have now found favor in your eyes, let me be given a place to dwell in some country town; for why should your servant live in the royal city with you?
You shall say, Your servants' occupation has been as keepers of livestock from our youth until now, both we and our fathers before us–in order that you may live in the land of Goshen, for every shepherd is an abomination to the Egyptians.
So, come out from among [unbelievers], and separate (sever) yourselves from them, says the Lord, and touch not [any] unclean thing; then I will receive you kindly and treat you with favor, [Isa. 52:11.]