Numbers 8:7

And thus shalt thou do unto them, to cleanse them: Sprinkle water of purifying upon them, and let them shave all their flesh, and let them wash their clothes, and [so] make themselves clean.

Ver. 7. Sprinkle water of purifying, &c.] This taught that none were meet for the holy ministry, but by the free favour of Christ, and by the sanctification of his Spirit. 2Co 2:16 Gal 1:15 Ministers are fullones animarum, their office is to whiten others; themselves therefore should be as those Nazarites Lam 4:7 "whiter than snow."

Shave all their flesh.] As the lepers did; Levites are by nature no better than lepers: ministers, men subject to like passions as others, and liable to more temptations.