Numbers 6:5

all the days of his separation:—a razor shall not come upon his head, until the days be fulfilled which he vowed to the Lord: he shall be holy, cherishing the long hair of the head,

All the days of the vow of his separation there shall no razor come upon his head: until the days be fulfilled, in the which he separateth himself unto the Lord, he shall be holy, and shall let the locks of the hair of his head grow.

“‘All the days of his vow of separation no razor shall come on his head, until the days are fulfilled in which he separates himself to Yahweh. He shall be holy. He shall let the locks of the hair of his head grow long.