II. Concerning their hair; in that they must avoid extremes on both hands (v. 20): They must not shave their heads, in imitation of the Gentile priests, and as the priests of the Romish church do; nor, on the other hand, must they suffer their locks to grow long, as the beaux, or that they might be thought Nazarites, when really they were not; but they must be grave and modest, must poll their heads and keep their hair short. If a man, especially a minister, wear long hair, it is not becoming (1 Cor. xi. 14); it is effeminate.