The Parsha teaches us how the priests performed the sacrifices and describes the ordination of Aaron and his sons. In the first reading (Lev 6:8-18 in KJV), the L-RD told Moses to command Aaron and the priests about the rituals of the sacrifices ( קָרְבָּנוֹת†, karbanot) The burnt offering ( עֹלָה†, olah). The Burnt offering was performed to atone for the sins of the people against the L-RD and was a dedication offering of one’s life before the L-RD continually.
The Meal (grain) offering ( מִנְחָה†, minchah). The purpose of the meal offering was an offering of gifts and speaks of a life that is dedicated to generosity and giving.
The sin offering ( חַטָּאת†, chatat). The sin offering expiated (meaning, paid the debts in full) the worshippers unintentional weaknesses and failures before the L-RD.
The Trespass (guilt) offering ( אָשָׁם†, asham). The trespass offering is similar to the sin offering but the main difference is that the trespass offering is an offering of money for sins of ignorance connected with fraud.
The peace offering ( ,שְׁלָמִים shelamim). The peace offering was a sacrifice of praise and thanksgiving was most of the time a voluntary act.
This is the law of the burnt offering, of the meat offering, and of the sin offering, and of the trespass offering, and of the consecrations, and of the sacrifice of the peace offerings; Which the LORD commanded Moses in mount Sinai, in the day that he commanded the children of Israel to offer their oblations unto the LORD, in the wilderness of Sinai. Leviticus 7:37-38