22 "But if you err, and do not observe all these commandments which the Lord has spoken to Moses, 23 all that the Lord has commanded you by Moses, from the day that the Lord gave commandment, and onward throughout your generations, 24 then if it was done unwittingly without the knowledge of the congregation, all the congregation shall offer one young bull for a burnt offering, a pleasing odor to the Lord, with its cereal offering and its drink offering, according to the ordinance, and one male goat for a sin offering. 25 And the priest shall make atonement for all the congregation of the people of Israel, and they shall be forgiven; because it was an error, and they have brought their offering, an offering by fire to the Lord, and their sin offering before the Lord, for their error. 26 And all the congregation of the people of Israel shall be forgiven, and the stranger who sojourns among them, because the whole population was involved in the error. 27 "If one person sins unwittingly, he shall offer a female goat a year old for a sin offering. 28 And the priest shall make atonement before the Lord for the person who commits an error, when he sins unwittingly, to make atonement for him; and he shall be forgiven. 29 You shall have one law for him who does anything unwittingly, for him who is native among the people of Israel, and for the stranger who sojourns among them.

Matthew Henry's Commentary on Numbers 15:22-29

Commentary on Numbers 15:22-29

(Read Numbers 15:22-29)

Though ignorance will in a degree excuse, it will not justify those who might have known their Lord's will, yet did it not. David prayed to be cleansed from his secret faults, those sins which he himself was not aware of. Sins committed ignorantly, shall be forgiven through Christ the great Sacrifice, who, when he offered up himself once for all upon the cross, seemed to explain one part of the intention of his offering, in that prayer, Father, forgive them, for they know not what they do. It looked favourably upon the Gentiles, that this law of atoning for sins of ignorance, is expressly made to extend to those who were strangers to Israel.