Leviticus 1:3
If one's offering is a burnt offering from the herd, he is to offer an unblemished male. He must bring it to the entrance of the Tent of Meeting for its acceptance before the LORD.

Leviticus 1:7
The sons of Aaron the priest shall prepare a fire on the altar and arrange wood on the fire.

Leviticus 6:7
In this way the priest will make atonement for him before the LORD, and he will be forgiven for anything he may have done to incur guilt."

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