Riddle

[ProDeo]

ESV | KJV
 2 And he said unto them, When ye pray, say, Our Father which art in heaven, Hallowed be thy name. Thy kingdom come. Thy will be done, as in heaven, so in earth. 3 Give us day by day our daily bread.1  4 And forgive us our sins; for we also forgive every one that is indebted to us. And lead us not into temptation; but deliver us from evil.

YLT
9 thus therefore pray ye: 'Our Father who [art] in the heavens! hallowed be Thy name. 10 'Thy reign come: Thy will come to pass, as in heaven also on the earth. 11 'Our appointed bread give us to-day. 12 'And forgive us our debts, as also we forgive our debtors. 13 'And mayest Thou not lead us to temptation, but deliver us from the evil, because Thine is the reign, and the power, and the glory--to the ages. Amen.

Where is the bold coming from in the YLT ?

Note, the bold is also in my Dutch Bible, I don't know any better, I am much surprised.

[DavidGYoung]

The bold text does not appear in some of the earlier manuscripts of Matthew. That is why some translations skip it entirely, some put it in footnotes and some highlight it.

[Fenris]

because Thine is the reign, and the power, and the glory--to the ages. 

I don't know why it is or isn't in the various translations in the bible, but he's quoting 1 Chron 29:11 "Yours, O LORD, is the greatness and the power and the glory and the splendor and the majesty, for everything in heaven and on earth belongs to You."

[DavidGYoung]

Aha! I detect the criterion of dissimilarity at play.