Therefore do what we advise you. There are four men with us who have taken a vow.

Numbers 6:13
Now this is the law of the Nazirite when his time of separation is complete: He must be brought to the entrance to the Tent of Meeting,

Numbers 6:18
Then at the entrance to the Tent of Meeting, the Nazirite is to shave his consecrated head, take the hair, and put it on the fire under the peace offering.

Acts 18:18
Paul remained in Corinth for quite some time before saying goodbye to the brothers. He had his head shaved in Cenchrea to keep a vow he had made, and then he sailed for Syria, accompanied by Priscilla and Aquila.

Acts 21:22
What then should we do? They will certainly hear that you have come.

1 Corinthians 9:20
To the Jews I became like a Jew, to win the Jews. To those under the law I became like one under the law (though I myself am not under the law), to win those under the law.

Do therefore this that we say to you: We have four men which have a vow on them;