Leviticus 6:7-9

New International Version - UK

⁷ In this way the priest will make atonement for them before the Lord, and they will be forgiven for any of the things they did that made them guilty.’

The burnt offering

⁸ The Lord said to Moses: ⁹ ‘Give Aaron and his sons this command: “These are the regulations for the burnt offering: the burnt offering is to remain on the altar hearth throughout the night, till morning, and the fire must be kept burning on the altar.