What does Deuteronomy 14:21 mean?

Ye shall not eat of anything that dieth of itself: thou mayest give it unto the sojourner that is within thy gates, that he may eat it; or thou mayest sell it unto a foreigner: for thou art a holy people unto Jehovah thy God. Thou shalt not boil a kid in its mother’s milk.

Ye shall not eat of any thing that dieth of itself: thou shalt give it unto the stranger that is in thy gates, that he may eat it; or thou mayest sell it unto an alien: for thou art an holy people unto the Lord thy God. Thou shalt not seethe a kid in his mother’s milk.

Ye shall not eat of anything that dieth of itself: thou mayest give it unto the sojourner that is within thy gates, that he may eat it; or thou mayest sell it unto a foreigner: for thou art a holy people unto Jehovah thy God. Thou shalt not boil a kid in its mother’s milk.

You may not have as food anything which has come to a natural death; the man from another country who is living with you may take it for food, or you may get a price for it from one of another nation; for you are a holy people to the Lord your God. The young goat is not to be cooked in its mother's milk.

`Ye do not eat of any carcase; to the sojourner who <FI>is<Fi> within thy gates thou dost give it, and he hath eaten it; or sell <FI>it<Fi> to a stranger; for a holy people thou <FI>art<Fi> to Jehovah thy God; thou dost not boil a kid in its mother's milk.

But whatsoever is dead of itself, eat not thereof. Give it to the stranger, that is within thy gates, to eat, or sell it to him: because thou art the holy people of the Lord thy God. Thou shalt not boil a kid in the milk of his dam.

Ye shall eat of no carcase; thou shalt give it unto the stranger that is within thy gates, that he may eat it, or sell it unto a foreigner; for thou art a holy people to Jehovah thyGod. Thou shalt not boil a kid in its mother's milk.