Lev. 6:9 Command Aaron and his sons, saying, This is the law of the burnt offering: The burnt offering shall be on the hearth on the altar all night until the morning, and the fire of the altar shall be kept burning on it.
All night until the morning [Leviticus 6:9] signifies that a burnt offering should remain in the place of burning through the dark night of this age until the morning, until the Lord Jesus comes again (2 Peter 1:19; Malachi 4:2). (Leviticus 6:9, footnote 3)
The priest’s burning wood on the altar every morning signifies the need of the serving one’s cooperation with God’s desire (see footnote 4 on Leviticus 6:9) by adding more fuel to the holy fire to strengthen the burning for the receiving of the burnt offering as God’s food (cf. Romans 12:11; 2 Timothy 1:6). The morning signifies a new start for the burning. (Leviticus 6:12, footnote 1)
The burning of the burnt offering laid a foundation for the sweetness of the peace offering. This indicates that our offering ourselves to God as a continual burnt offering (cf. Romans 12:1) should be laid as a foundation for our sweet fellowship with God, signified by the burning of the fat of the peace offering. The burning of both the burnt offering and the peace offering signifies that both our absoluteness for God and our enjoyment of the Triune God should be a matter of burning. (Leviticus 6:12, footnote 2)
Read more via footnote 4 on 2 Pet. 1:19, on the same topic.
