The "tag" being referred to is actually from Mathew 6:13:
13And lead us not into temptation, but deliver us from evil: For thine is the kingdom, and the power, and the glory, for ever. Amen.
Something that is forgotten in especially the Catholic mass is the preceeding verse to the Lord's Prayer:
Mathew 6:7
But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking.
Basically, one should not repeat blindly the same prayer over and over. The Lord's Prayer was given as an example. There is nothing wrong with using it. There is nothing wrong with repeating it. But it should always come from the heart and soul. The consant repetition is not what was intended.
Having grown up Catholic and now being away from that particular church for several years, there are still several "prayers" that I remember, in particular the Apistolic Creed and the Prayer of Reconciliation. Neither of which are bad, but by and large most of the Catholics I knew just repeated what was fed to them. They could not even point out in the Bible that there is not an Apistolic creed anywhere that even resembles what the Catholic church has, yet if asked they would often times swear that it's in there somewhere. Well, yes and no. It all IS in there, but is made up of verses from all over the New Testiment.
It's my opinion that the Catholic church is stuck in Tradition and lacking in true understanding of what Praise and Worship of our Lord and Savior really is. They have a lot of things right, but Pomp and Circumstance is not what was ever intended for Christians. In fact, generally speaking, it's just the opposite. It's not in the bible that clergy are to be un-wed. Again, just the opposite. It's not in the bible that Christians are to be "poor" or to at least not be "rich". Just the opposite. It's not biblical that clergy are to lacking the newest things, the best things, etc. Just the opposite.
I'm not bashing the Catholics, I can't and won't. There are some truths as laid out in the bible that are being missed by the Catholic church, but EVERY religion has one thing or another that is counter-biblical. It's the nature of Man.