Bible Verses about long hair.

New International Version
“’During the entire period of their Nazirite vow, no razor may be used on their head. They must be holy until the period of their dedication to the LORD is over; they must let their hair grow long.

New Living Translation
“They must never cut their hair throughout the time of their vow, for they are holy and set apart to the LORD. Until the time of their vow has been fulfilled, they must let their hair grow long.

English Standard Version
“All the days of his vow of separation, no razor shall touch his head. Until the time is completed for which he separates himself to the LORD, he shall be holy. He shall let the locks of hair of his head grow long.

Numbers 6:5 ESV / 9 helpful votes
“All the days of his vow of separation, no razor shall touch his head. Until the time is completed for which he separates himself to the Lord, he shall be holy. He shall let the locks of hair of his head grow long.

Judges 13:116:31 ESV / 7 helpful votes
And the people of Israel again did what was evil in the sight of the Lord, so the Lord gave them into the hand of the Philistines for forty years. There was a certain man of Zorah, of the tribe of the Danites, whose name was Manoah. And his wife was barren and had no children. And the angel of the Lord appeared to the woman and said to her, “Behold, you are barren and have not borne children, but you shall conceive and bear a son. Therefore be careful and drink no wine or strong drink, and eat nothing unclean, for behold, you shall conceive and bear a son. No razor shall come upon his head, for the child shall be a Nazirite to God from the womb, and he shall begin to save Israel from the hand of the Philistines.” ..