Ever notice that, during the mass, the doxology of the Lord’s prayer (for Thine is the Kingdom…) is purposefully separated from the main body of the prayer? Turns out that the doxology was not in all manuscripts, either. So, the Church split the difference and kept it, but separated it so as not to de facto add it to the prayer.
I should also mention that while the doxology is almost universal in the Eastern rites, it’s practically unknown historically in Western liturgies. The Roman rite Mass only adopted it in the Ordinary Form; if you’ll notice, the EF (aka the Tridentine Mass)
did not have the doxology at all. Neither did
the Mozarabic (not even in
its revised form) nor the Ambrosian, nor AFAIK did other Western liturgies. One might thus argue that the insertion of the doxology in the OF is a non-organic ‘innovation’. (But I’m not going into that right now. Note that I’m not saying that the OF is invalid or that it is somehow ‘less Catholic’ or anything.)
What you have in most liturgies after the Our Father is the
Embolism, a prayer taking up and expanding on the last petition (“Deliver us from evil”). This is the version that was originally used in the Roman Rite.
Deliver us, we beseech you, O Lord, from every evil, past, present and future; and by the intercession of the blessed and glorious ever virgin, Mary mother of God, together with your blessed apostles Peter and Paul and Andrew, and all the Saints, graciously grant peace in our days, that, by the help of your mercy, we may be always free from sin and safe from all distress. Through the same Jesus Christ, your Son, our Lord, who lives and reigns with you in the unity of the Holy Spirit, God, (aloud) forever and ever.
(Amen.)
The OF has a truncated version which is designed to segue into the doxology: “Deliver us, Lord, we pray, from every evil, graciously grant peace in our days, that, by the help of your mercy, we may be always free from sin and safe from all distress, as we await the blessed hope and the coming of our Saviour, Jesus Christ.”
The
Knox Bible includes these two verses. The perennial favorite Confraternity Bible

also includes them, being Vulgate based. Sadly, it is not online that I can find.
It might interest you to know that the Vulgate - even the Clementine - doesn’t have the doxology either. I don’t know if you can read Latin, but here’s the earliest manuscripts of the Vulgate,
Codex Fuldensis (AD 541-546) and
Codex Amiatinus (8th century) compared with the Clementine for the relevant passage.
(Fuldensis)
(Matt. 6:7) orantes autem nolite multum loqui sicut ethnici· putant enim quia in multiloquio suo exaudiantur· (8) nolite ergo adsimilari eis· scit enim pater uester quibus opus sit uobis antequam petatis eum· (Lk. 11:1) Tunc dixit unus ex discipulis eius ad eum· domine doce nos orare· sicut iohannes docuit discipulos suos· (Lk. 11:2; Matt. 6:9-10) et ait ilis cum orates dicite· pater noster qui in caelis es· sanctificetur nomen tuum· ueniat regnum tuum· fiat voluntas tua· sicut in caelo et in terra·
(Matt. 6:11; Lk. 11:3) panem nostrum supersubstantialem cotidianum da nobis die· (Matt. 6:12) et demitte nobis debita nostra· sicut et nos dimittimus debitoribus nostris (13) et ne inducas nos in temtationem sed libera nos a malo· (14) si enim dimiseritis hominibus peccata eorum dimittet et uobis pater uester caelestis delicta uestra
(15) Si autem non dimiseritis hominibus nec pater uester dimittet uobis peccata uestra·
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(Amiatinus)
(6:7) Orantes autem nolite multum loqui sicut ethnici; putant enim quia in multiloquio suo exaudiantur. (8) Nolite ergo assimilari eis: scit enim pater vester quibus opus sit vobis ante quam petatis eum. (9) Sic ergo vos orabitis Pater noster qui es in caelis, sanctificetur nomen tuum, (10) adveniat regnum tuum, fiat voluntas tua sicut in caelo et in terra, (11) panem nostrum supersubstantialem da nobis hodie, (12) et dimitte nobis debita nostra sicut et nos dimittimus debitoribus nostris, (13) et ne inducas nos in temtationem, sed libera nos a malo. (14) Si enim dimiseritis hominibus peccata eorum, dimittet et vobis pater vester caelestis delicta vestra; (15) si autem non dimiseritis hominibus, nec pater vester dimittet peccata estra.
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(Clementine)
7 Orantes autem, nolite multum loqui, sicut ethnici, putant enim quod in multiloquio suo exaudiantur. 8 Nolite ergo assimilari eis: scit enim Pater vester, quid opus sit vobis, antequam petatis eum. 9 Sic ergo vos orabitis:
Pater noster, qui es in cælis,
sanctificetur nomen tuum.
10 Adveniat regnum tuum ;
fiat voluntas tua, sicut in cælo et in terra.
11 Panem nostrum supersubstantialem da nobis hodie,
12 et dimitte nobis debita nostra,
sicut et nos dimittimus debitoribus nostris.
13 Et ne nos inducas in tentationem,
sed libera nos a malo. Amen.
14 Si enim dimiseritis hominibus peccata eorum: dimittet et vobis Pater vester cælestis delicta vestra. 15 Si autem non dimiseritis hominibus: nec Pater vester dimittet vobis peccata vestra.