Pope Gregory II Commends Boniface to Charles Martel, December 722

To the glorious Lord, our son, Duke Charles.

Having learned, beloved son in Christ, that you are a man of deeply religious feeling, we make known to you that our brother Boniface, who now stands before you, a man of sterling faith and character, has been consecrated bishop by us, and after being instructed in the teachings of the Holy Apostolic See, over which by God’s grace we preside, is being sent to preach the faith to the peoples of Germany who dwell on the eastern bank of the Rhine, some of whom are still steeped in the efforts of paganism, while many more are plunged in the darkness of ignorance.

For this reason we commend him without more ado to your kindness and goodwill, begging you to help him in all his needs and to grant him your constant protection against any who may stand in his way. Know for certain that any favour bestowed on him is done for God, who on sending His holy Apostles to convert the Gentiles said that any man who received them received Him.

Instructed by us in the teachings of these Apostles, the bishop aforesaid is now on his way to take up the work assigned to him.