'Ordinance' in the Bible

The second [bird] he shall prepare as a burnt offering, according to the ordinance. So the priest shall make atonement on his behalf for the sin which he has committed, and it will be forgiven him.

He also presented the burnt offering and offered it according to the ordinance.

Therefore the priests shall observe My ordinance, so that they will not bear sin because of it and die if they profane it; I am the Lord who sanctifies them.