It’s added to the end of the Lord’s Prayer in the King James version and the slightly older Geneva Bible, in Matthew 6:13. I’ve seen it added to the prayer in Russian Orthodox prayer books as well. The phrase is found elsewhere in scripture,
Daniel 2:37
37 You, O king, the king of kings, to whom the God of heaven has given the kingdom, the power, and the might, and the glory,
Psalm 145:11
11 They shall speak of the glory of thy kingdom,
and tell of thy power,
1 Chron 29:11
11 Thine, O Lord, is the greatness, and the power, and the glory, and the victory, and the majesty; for all that is in the heavens and in the earth is thine; thine is the kingdom, O Lord, and thou art exalted as head above all.
Passages taken from the RSVCE