Numbers 6:11

a sin-offering A form of sacrifice not mentioned in the historical or prophetical books. Its purpose was the removal of defilement, separation from all that was not holy. It was thus used at the consecration of places(Exodus 29:36; Leviticus 8:14 f.), and of personspriests (Exodus 29:14; Leviticus 4:3; Leviticus 8:2; Leviticus 8:14 &c.), and Levites (Numbers 8:8; Numbers 8:12); and also to make atonement for inadvertent transgressions (Numbers 15:24; Numbers 15:27; Leviticus 4:2; Leviticus 4:13 &c.), and for ceremonial uncleanness (here, Leviticus 12:6; Leviticus 12:8; Leviticus 14:19; Leviticus 15:15).

Before the exile the sin-offering appears only as a fine levied by the priests at the sanctuary (2 Kings 12:16).

a burnt-offering A very ancient rite, expressing self-dedication to God.

hallow his head It had become free from pollution on the previous day, but needed re-hallowing for the purposes of the vow.