Acts 18:17–19 (NASB95)
And they all took hold of Sosthenes, the leader of the synagogue, and began beating him in front of the judgment seat. But Gallio was not concerned about any of these things. Paul, having remained many days longer, took leave of the brethren and put out to sea for Syria, and with him were Priscilla and Aquila. In Cenchrea he had his hair cut, for he was keeping a vow. They came to Ephesus, and he left them there. Now he himself entered the synagogue and reasoned with the Jews.
Interesting that the leader of the city didn’t care about who was being beaten knowing that it was just a show. Sosthenes took a beating for nothing trying to prove a point. Paul left for Ephesus with Priscilla and Aquila. Note that he cut his hair. Why? He took a vow and his lack of hair reminded him of his vow. But why cut his hair off? Part of it could be that he was dying to his outward appearance for the sake of his vow. We live in a an age that is so concerned about outward appearance that it neglects the appearance of our inner man before God. Most likely this was a Nazirite vow (don’t cut your hair, don’t drink alcohol, and don’t go near the dead). At the end of the vow the hair was cut off. Whatever type of vow this was, Paul was serious about keeping it. We make many assertions that we do not keep. May we be people of our word, especially with God, when we make a promise or vow….