Interesting fact I’ve just learned: if you say The Lord’s Prayer, you’re not quoting Scripture — you’re quoting Tradition.
The prayer taught in Matthew 6:9-13 does not include the last two lines of what’s commonly accepted as The Lord’s Prayer today. The tradition of including those lines actually comes from Chapter 8 of the Didache, a first- or second-century document that is often acknowledged as the first written Christian catechism. The Didache is not itself Scriptural, but if you read it, you can see that is is derived directly from Gospel teachings.
In our liturgy, Catholics recite Matthew 6:9-13 and that is the prayer we often call “the Our Father.” However, the two lines from the Didache are spoken as a response to a prompt from the priest and, by our reckoning, are not considered to be a part of the prayer’s text itself.
Or, in other words, it’s the Catholics who use the text as it was actually written in Scripture…and the Protestants who use a text that was originally presented in a non-Scriptural but highly authoritative traditional text.
Interesting reversal there!
(The Didache part is what I learned today. I was initially taught that those last two lines are “just a gloss added by Protestants.” Not quite correct…)