“When a calf, a lamb, or a goat is born, it must stay with its mother for seven days. From the eighth day on it may be accepted as a sacrifice by fire to the Lord.
It will be on Aaron’s forehead. He’s the one to be blamed for anything done wrong when the Israelites bring their holy offerings—whatever their gifts may be. The medallion must always be on Aaron’s forehead so that the Lord will accept their offerings.
Never bring any kind of castrated animal received from a foreigner as a food offering for your God. A castrated animal will not be accepted on your behalf because castration is a physical defect.”
Then Samuel took a lamb, one still feeding on milk, and sacrificed it as a burnt offering to the Lord. Samuel cried to the Lord on behalf of Israel, and the Lord answered him.