If your consecrated hair is defiled because you are right beside someone who suddenly dies, you must wait seven days and then shave your head; and so you become ritually clean.
and then go into the inner courtyard of the Temple and offer a sacrifice for his purification, so that he can serve in the Temple again. I, the Sovereign Lord, have spoken.
You shall wash your clothes, shave off all your hair, and take a bath; you will then be ritually clean. You may enter the camp, but you must live outside your tent for seven days.
On the seventh day you shall again shave your head, your beard, your eyebrows, and all the rest of the hair on your body; you shall wash your clothes and take a bath, and then you will be ritually clean.
Paul stayed on with the believers in Corinth for many days, then left them and sailed off with Priscilla and Aquila for Syria. Before sailing from Cenchreae he had his head shaved because of a vow he had taken.
But just when the seven days were about to come to an end, some Jews from the province of Asia saw Paul in the Temple. They stirred up the whole crowd and grabbed Paul.