>You removed a tittle there:
>"For thine is the kingdom, and the power, and the glory, for ever. Amen."
These words are called the doxology, which means a “word of praise or glory.” These words have sparked an incredible amount of debate throughout the history of the church. The debate arose because it is not entirely clear whether Jesus ended the Lord’s Prayer with the words we call the doxology.
The Bible records Jesus speaking the Lord’s Prayer on two different occasions (Matthew 6:9-13 and Luke 11:2-4). The original manuscripts that recorded Jesus’ words no longer exist. Instead, we have many copies of those manuscripts. The reality is that not all the copies agree on the wording of the Lord’s Prayer.
Is the Doxology of the Lord’s Prayer in Matthew 6:13 a Late Addition?
However, in Matthew 6 and elsewhere in Scripture, the doxology heard as an addendum to the Lord’s Prayer in today’s Masses is not present in the most ancient biblical manuscripts.
Adding the doxology to the Lord’s Prayers began in the early Church, as evidenced by its mention in the Didache (Greek for “Teaching:), which purports to be the “Teaching of the Twelve Apostles” and was written in the later first or early second century (Didache 8, 2). And as we can see, while not strictly biblical, adding the doxology at the end of the Lord’s Prayer certainly has biblical and other Jewish roots.