Leviticus 1:13

1:13 Then the one presenting the offering must wash the entrails and the legs in water, and the priest must present all of it and offer it up in smoke on the altar – it is a burnt offering, a gift of a soothing aroma to the Lord.

Leviticus 6:9

6:9 “Command Aaron and his sons, ‘This is the law of the burnt offering. The burnt offering is to remain on the hearth on the altar all night until morning, and the fire of the altar must be kept burning on it.

Leviticus 23:14

23:14 You must not eat bread, roasted grain, or fresh grain until this very day, until you bring the offering of your God. This is a perpetual statute throughout your generations in all the places where you live.