'Hair of His Head' in the Bible

" 'All the days of the vow of his separation a razor will not pass over his head. Until fulfilling the days that he separated himself to Yahweh he will be holy and grow long the locks of the hair of his head.

But the hair of his head began to grow back after it had been shaved off.

When he shaved his head, it would happen {every year}, which he did because [it was] heavy on him, he would shave it off and weigh the hair of his head: two hundred shekels {by the king's weight}.

"{I continued watching} until thrones were placed and an Ancient of Days sat; his clothing [was] like white snow and the hair of his head [was] like pure wool and his throne [was] a flame of fire and its wheels [were] burning fire.