Leviticus

²⁵Neither from the hand of a foreigner shall ye offer the bread of your God of any of these; because their corruption is in them, there is a blemish in them: they shall not be accepted for you. ²⁶And the Lord spake unto Moses, saying, ²⁷When 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 the oblation of an offering made by fire unto the Lord. ²⁸And whether it be cow or ewe, ye shall not kill it and her young both in one day. ²⁹And when ye sacrifice a sacrifice of thanksgiving unto the Lord, ye shall sacrifice it that ye may be accepted. ³⁰On the same day it shall be eaten; ye shall leave none of it until the morning: I am the Lord. ³¹Therefore shall ye keep my commandments, and do them: I am the Lord.