A Prayer for the Feast Day of Martin Luther

O God, our refuge and our strength, who didst raise up thy servant Martin Luther to reform and renew thy Church in the light of thy word: Defend and purify the Church in our own day and grant that, through faith, we may boldly proclaim the riches of thy grace, which thou hast made known in Jesus Christ our Savior, who, with thee and the Holy Spirit, liveth and reigneth, one God, now and for ever.