O God, Harm None Through My Preaching

A Lutheran prayer for a beginning preacher:

Dear God, I have begun to preach, and to teach the people. It is hard. If it offends here and there, may no harm be done. Since you have commanded me to preach your Word, I will not stop. If it fails, it fails for you. If it succeeds, it succeeds for you and me. Amen. 

—Martin Luther, Luther's Prayers (ed. Herbert F. Brokering; Augsberg: Minneapolis, 1994), 89.