For the entire period of his vow of separation, no razor shall touch his head. He must be holy until the time of his separation to the LORD is complete; he must let the hair of his head grow long.
Num 6:5 Secondly, during the whole term of his vow of consecration, no razor was to come upon his head. Till the days were fulfilled which he had consecrated to the Lord, he was to be holy, “to make great the free growth (see Lev 10:6) of the hair of his head.” The free growth of the hair is called, in Num 6:7, “the diadem...
5. There shall no razor come upon his head. It cannot be certainly determined why God would have the Nazarites let their hair grow, except that by this present mark of their consecration, they might be more and more reminded of their vow. Some think that it was a mark of honor, as if they wore a crown on their heads.
The Nazarite vow distinguishes those who profess greater strictness and zeal in religion than their neighbors. Some were lifelong Nazarites by divine appointment or parental dedication; this law concerns those who bind themselves voluntarily for a season. A woman might take this vow under the conditions given. These separated ones devoted themselves to the Lord's service, to the study of His law, and to devotion.
AI summary
Commenting on Numbers 6:1-21