(6) They shall be holy unto their God.--This is the reason why the priests are not to disfigure themselves by maiming their outward appearance. Being sacred to the Lord, they are not to indulge in those outward manifestations of grief which would interfere with the discharge of their sacred duties, and thus cause the name of God to be profaned.

The offerings of the Lord made by fire, and the bread of their God.--Better, the offerings of the Lord made by fire, being the food of God. As the altar was the table, the sacrifice burnt on it was called His food. (See Leviticus 3:11.)

21:1-24 Laws concerning the priests. - As these priests were types of Christ, so all ministers must be followers of him, that their example may teach others to imitate the Saviour. Without blemish, and separate from sinners, He executed his priestly office on earth. What manner of persons then should his ministers be! But all are, if Christians, spiritual priests; the minister especially is called to set a good example, that the people may follow it. Our bodily infirmities, blessed be God, cannot now shut us out from his service, from these privileges, or from his heavenly glory. Many a healthful, beautiful soul is lodged in a feeble, deformed body. And those who may not be suited for the work of the ministry, may serve God with comfort in other duties in his church.They shall be holy unto their God,.... Sacred to his service, and wholly given up to it, and not interest themselves in things which hindered from it, or made them unfit for it; and such care becomes the ministers of the word, who should give up themselves to it, and not entangle themselves with other affairs; they should be clean, pure, and holy, that bear the vessels of the Lord, and minister in holy things, and should set an example of purity and holiness to others:

and not profane the name of their God; or cause it to be profaned and evil spoken of on their account, or his service to be interrupted, and they who bore his name put upon a level with common persons through their pollutions:

for the offerings of the Lord made by fire; the burnt offerings, which were offered up to the Lord on the altar of burnt offering every day, besides others on divers occasions:

and the bread of their God do they offer; the shewbread, which they set every week before the Lord on the shewbread table, and the meat or bread offering, the "minchah", which they continually offered along with the sacrifices: or the word "and", being a supplement, may be left out; and so this clause is put by way of apposition, and as interpreting the fire offering to be the bread of their God, which being wholly burnt on the altar, and devoted to God, was his meat and food, and accepted by him, see Leviticus 3:11,

therefore they shall be holy; separate from all others, and abstain from all impurity both of flesh and spirit, from all uncleanness, moral and ceremonial; it being highly fit and proper that the bread of God should be offered by holy persons.