Leviticus 22:18

15 And they may not make common the holy things which the children of Israel give to the Lord,

16 So causing sin to come on them when they take their holy things for food: I am the Lord who make them holy.

17 And the Lord said to Moses,

18 Say to Aaron and to his sons and to all the children of Israel, If any man of the children of Israel, or of another nation living in Israel, makes an offering, given because of an oath or freely given to the Lord for a burned offering;

19 So that it may be pleasing to the Lord, let him give a male, without any mark, from among the oxen or the sheep or the goats.

20 But anything which has a mark you may not give; it will not make you pleasing to the Lord.

21 And whoever makes a peace-offering to the Lord, in payment of an oath or as a free offering, from the herd or the flock, if it is to be pleasing to the Lord, let it be free from any mark or damage.