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.
28 And whether it be cow or ewe, ye shall not kill it and her young both in one day.
29 And when ye will offer a sacrifice of thanksgiving unto the LORD, offer it at your own will.
30 On the same day it shall be eaten up; ye shall leave none of it until the morrow: I am the LORD.
31 Therefore shall ye keep my commandments, and do them: I am the LORD.
32 Neither shall ye profane my holy name; but I will be hallowed among the children of Israel: I am the LORD which hallow you,
33 That brought you out of the land of Egypt, to be your God: I am the LORD.
Leviticus 23
1 And the LORD spake unto Moses, saying,
2 Speak unto the children of Israel, and say unto them, Concerning the feasts of the LORD, which ye shall proclaim to be holy convocations, even these are my feasts.
3 Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the LORD in all your dwellings.
4 These are the feasts of the LORD, even holy convocations, which ye shall proclaim in their seasons.