Bible Verses About Nazarites: To shave their heads

The nazir will shave his consecrated head at the entrance to the tent of meeting, take the hair removed from his consecrated head and put it on the fire under the sacrifice of peace offerings.

Sha’ul remained for some time, then said good-bye to the brothers and sailed off to Syria, after having his hair cut short in Cenchrea, because he had taken a vow; with him were Priscilla and Aquila.

Take them with you, be purified with them, and pay the expenses connected with having their heads shaved. Then everyone will know that there is nothing to these rumors which they have heard about you; but that, on the contrary, you yourself stay in line and keep the Torah.