The Didache (full text) is an early Christian document giving advice on various "practical matters" such as how to baptize, when to fast, how to celebrate the Lord's Supper, etc. It's hard to date, ...
Didache 7 Concerning baptism, you should baptize this way: After first explaining all things, baptize in the name of the Father, and of the Son, and of the Holy Spirit, in flowing water. ...
As it pertains primarily to Catholicism, Eastern Orthodoxy, and other large denominations that not only lay claim to an unbroken successive line, but who also put significant emphasis on it: The ...
So, I was writing an answer to a question a few minutes ago, and I was going to smugly tell all you Protestants that your "thine is the Kingdom" doxology is so non-Biblical, it's apocryphal. Well, ...
The Didache, or Teaching of the Twelve Apostles (an early Christian text not part of the New Testament) says of baptism (chapter 7): On the subject of baptism, baptise thus: after having taught ...