Numbers 6:5

5. No razor come upon his head The unshorn head was not a symbol of holiness among the Hebrews, as Bahr suggests, but simply an ornament in which the whole strength and fulness of life were set forth in honour of Jehovah as a sign of the perfect consecration of all his energies to his service. It was not a sign of perfect liberty, still less of dependence upon some other power, nor of abasement, nor abstinence, nor of renunciation of the world.

Until the days be fulfilled The law prescribed no period.