John Calvin on Deuteronomy 23:18

18. Thou shalt not bring the hire. This command has an affinity to the foregoing, for God, rejecting whatever is acquired by illicit and filthy traffic, teaches us that the utmost chastity is to be observed in sacred things; nor does He only refuse the hire of a whore, but also the price of a dog, lest the sanctity of the altar should be polluted by any impure oblation. Still the dog seems to be rejected in comparison with other animals out of contempt; for it was just as wrong to kill a pig as a dog, yet might the price of a pig be offered. The dog, therefore, is rejected not only as an unclean animal, but also as vile and contemptible. In sum, God would impress upon them the reverence due to His temple and altar.

Leviticus 22

Leviticus 22:26-28

26. And the LORD spake unto Moses, saying,

26. Loquutus est Jehova ad Mosen, dicendo:

27. When a bullock, or a sheep, or a goat, is brought forth, then it shall be seven days under the dam; and from the eighth day and thenceforth it shall be accepted for an offering made by fire unto the LORD.

27. Bos, vel agnus, vel capra, quum natus fuerit, erit septem diebus sub matre sua, a die autem octavo et deinceps, placebit in oblationem sacrificii igniti Jehovae.

28. And whether it be cow or ewe, ye shall not kill it and her young both in one day.

28. Bovem autem, vel pecudem, et fillum ejus non mactabitis die una.

Exodus 22

Exodus 22:30

30. Likewise shalt thou do with thine oxen, and with thy sheep: seven days it shall be with his dam; on the eighth day thou shalt give it me.

30. Erit primogenitum animal septem diebus cum matre sua: die autem octavo dabitis illud mihi.

Exodus 34

Exodus 34:26

26. ... Thou shalt not seethe a kid in his mother’s milk.

26. Non coques hoedum in lacte matris suae.

Deuteronomy 14

Deuteronomy 14:21

21. ... Thou shalt not seethe a kid in his mother’s milk.

21. Non coques hoedum in lacte matris suae.