Deuteronomy 14:21

21 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.

Deuteronomy 14:21 In-Context

19 And all winged creeping things are unclean unto you: they shall not be eaten.
20 Of all clean birds ye may eat.
21 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.
22 Thou shalt surely tithe all the increase of thy seed, that which cometh forth from the field year by year.
23 And thou shalt eat before Jehovah thy God, in the place which he shall choose, to cause his name to dwell there, the tithe of thy grain, of thy new wine, and of thine oil, and the firstlings of thy herd and of thy flock; that thou mayest learn to fear Jehovah thy God always.
The American Standard Version is in the public domain.