“Will” is without the article in the Greek, the force of which is that this is not the whole of God’s will for them. God’s will includes many things,13 but of great importance for them is the one of which Paul speaks. Paul’s direction, then, is on the very highest plane. He does not speak on the level of ethics or prudence or ecclesiastical regulations. This is what God wants his people to do and there could be no higher sanction. This is Paul’s point also in referring to sanctification (“that you