 Dr. Mark Kahn of Louisiana Baptist University. Paul exhorted Titus to teach the scripture boldly, with authority, Titus 2.15. As believers serve each other and the Lord, they should do so with confidence and the authority that comes with knowing that they are doing God's work. If anyone speaks, they should do so as one who speaks the very words of God. If anyone serves, they should do so with the strength that God provides.