Most holy and merciful Father, when your Son our Lord and Savior gave commission to his disciples to teach all nations, baptizing them in your name, and teaching them all his commandments, he did also promise to be with them always even to the end of the world. In faith in this promise and in obedience to this commandment we present unto you this your servant, who, repenting of and renouncing all sin, accepts your salvation, and humbly desires to put on the sacramental seal and badge of discipleship. May the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge his conscience from dead works to serve the living God. Baptize him, O Lord, we ask you, with the Holy Ghost and with fire. Purify and purge him like gold and silver, so that he may offer unto the Lord an offering in righteousness.
As he is hereby enrolled with the soldiers of the cross, clothe him, we pray, with the whole armor of God—the breastplate of righteousness, the shield of faith, the helmet of salvation, and the sword of the Spirit—that, his loins girt about with truth and his feet shod with the preparation of the gospel of peace, he may be able to withstand in the evil day, and having done all to stand. And so mightily work in him by your light and your power that he may be preserved from all error, and maintained in the patience, perseverance and victory of your saints; so that his name may not be blotted out of your book of life, but that he may have place with them of every nation who, coming out of great tribulation, have washed their robes and made them white in the blood of the Lamb. Amen.
Ritzema, E. (Ed.). (2012). 400 Prayers for Preachers. Bellingham, WA: Lexham Press.