Luther's Sacristy Prayer

Lord God, you have appointed me as a bishop and pastor in your Church, but you see how unsuited I am to meet so great and difficult an office. If I had lacked your help, I would have ruined everything long ago. Therefore I call upon you: I wish to devote my mouth and my heart to you; I shall teach the people. I myself will learn and ponder diligently upon your Word. Use me as your instrument, but do not forsake me, for if ever I should be on my own, I would easily wreck it all. Amen.