Reference

Matthew 28:18-20
“Jesus came and said to them, "All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you; and lo, I am with you always, to the close of the age.”
Christianity is the religion of a sinner who applies for salvation from deserved wrath and from sin; he applies to the mercy of the Father, through the atonement of the incarnate Son, and by the sanctification of the Holy Spirit, and gives up himself to be the worshipper and servant of God, as the Father, Son, and Holy Ghost, three Persons but one God, in all his ordinances and commandments.