Leviticus 22:18-19

18Speak to Aaron and his sons and all the people of Israel and say to them, a  When any one of the house of Israel or of the sojourners in Israel presents a burnt offering as his offering, for any of their vows or freewill offerings that they offer to the  Lord, 19if it is to be accepted for you it shall be a b  male without blemish, of the bulls or the sheep or the goats.
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