13-21. if the whole congregation of Israel sin through ignorance—In consequence of some culpable neglect or misapprehension of the law, the people might contract national guilt, and then national expiation was necessary. The same sacrifice was to be offered as in the former case, but with this difference in the ceremonial, that the elders or heads of the tribes, as representing the people and being the principal aggressors in misleading the congregation, laid their hands on the head of the victim. The priest then took the blood into the holy place, where, after dipping his finger in it seven times, he sprinkled the drops seven times before the veil. This done, he returned to the court of the priests, and ascending the altar, put some portion upon its horns; then he poured it out at the foot of the altar. The fat was the only part of the animal which was offered on the altar; for the carcass, with its appurtenances and offals, was carried without the camp, into the place where the ashes were deposited, and there consumed with fire.

     22-26. When a ruler hath sinned, and done somewhat through ignorance against any of the commandments—Whatever was the form of government, the king, judge, or subordinate, was the party concerned in this law. The trespass of such a civil functionary being less serious in its character and consequences than that either of the high priest or the congregation, a sin offering of inferior value was required—"a kid of the goats"; and neither was the blood carried into the sanctuary, but applied only to the altar of burnt offering; nor was the carcass taken without the camp; it was eaten by the priests-in-waiting.

     27-34. if any one of the common people sin through ignorance—In this case the expiatory offering appointed was a female kid, or a ewe-lamb without blemish; and the ceremonies were exactly the same as those observed in the case of the offending ruler [Le 4:22-26]. In these two latter instances, the blood of the sin offering was applied to the altar of burnt offering—the place where bloody sacrifices were appointed to be immolated. But the transgression of a high priest, or of the whole congregation, entailing a general taint on the ritual of the tabernacle, and vitiating its services, required a further expiation; and therefore, in these cases, the blood of the sin offering was applied to the altar of incense [Le 4:6, 17].