Leviticus 14:20
And the priest shall offer the burnt offering and the meat offering upon the altar: and the priest shall make an atonement for him, and he shall be clean.
Cross-reference
Leviticus 14:10 lists the required offerings for the cleansing ritual — here the priest offers them as described.
Leviticus 14:29 continues the cleansing ritual with the application of oil — a later step after the offerings here.
Leviticus 14:53 describes a similar atonement ritual for a house — the same pattern of purification extended to dwellings.
Leviticus 15:15 also uses a sin offering for purification from bodily discharge — parallel atonement for impurity.
In Ephesians 5:2, Christ's self-sacrifice is described as a fragrant offering — echoing the pleasing aroma of the burnt offering here.
Numbers 8:12 also combines sin and burnt offerings for atonement — similar sacrificial pattern for Levites' dedication.
2 Chronicles 29:24 records a similar burnt and sin offering for atonement for all Israel — echoing the same sacrificial principle.