O Emmanuel, Rex et legifer noster, exspectatio gentium, et Salvator earum: veni ad salvandum nos Domine Deus noster.

https://youtu.be/Zt9W9Kc_hzo

O Emmanuel, God with us, our King and lawgiver, the expected of the nations and their Savior: come to save us, O Lord our God.

Isaias 7:14
Therefore the Lord himself shall give you a sign. Behold a virgin shall conceive, and bear a son and his name shall be called Emmanuel.

From my publication, Praying the Mass during Advent by Dom Gueranger:

O Emmanuel! King of Peace! thou enterest today the city of thy predilection, the city in which thou hast placed thy Temple,—Jerusalem. A few years hence, and the same city will give thee thy Cross and thy Sepulcher: nay, the day will come, on which thou wilt set up thy Judgment-seat within sight of her walls. But, today, thou enterest the city of David and Solomon unnoticed and unknown. It lies on thy road to Bethlehem. Thy Blessed Mother and Joseph, her Spouse, would not lose the opportunity of visiting the Temple, there to offer to the Lord their prayers and adoration. They enter; and then, for the frst time, is accomplished the prophecy of Aggeus, that great shall be the glory of this late House more than of the first; for this second Temple has now standing within it an Ark of the Covenant more precious than was that which Moses built; and within this Ark, which is Mary, there is contained the God, whose presence makes her the holiest of sanctuaries. The Lawgiver himself is in this blessed Ark, and not merely, as in that of old, the tablet of stone on which the Law was graven. The visit paid, our living Ark descends the steps of the Temple, and sets out once more for Bethlehem, where other prophecies are to be fulflled. We adore thee, O Emmanuel! in this thy journey, and we reverence the fdelity wherewith thou fulfllest all that the prophets have written of thee, for thou wouldst give to thy people the certainty of thy being the Messiah, by showing them, that all the marks, whereby he was to be known, are to be found in thee. And now, the hour is near; all is ready for thy Birth; come, then, and save us; come, that thou mayest not only be called our Emmanuel, but our Jesus, that is, He that saves us.

O Rex gentium, et desideratus earum, lapisque angularis, qui facis utraque unum: veni, et salva hominem, quem de limo formasti.

O King of the gentiles and their desired One, the cornerstone that makes both one: come, and deliver man, whom Thou didst form out of the dust of the earth.

Isaias 9:7
His empire shall be multiplied, and there shall be no end of peace: he shall sit upon the throne of David, and upon his kingdom; to establish it and strengthen it with judgment and with justice, from henceforth and for ever: the zeal of the Lord of hosts will perform this.

Isaias 2:4
And he shall judge the Gentiles, and rebuke many people: and they shall turn their swords into ploughshares, and their spears into sickles: nation shall not lift up sword against nation, neither shall they be exercised any more to war.

Check out my publication which provides commentary on the O Antiphons, in addition to direction on how to pray the Mass during Advent. This publication is a perennial addition to your library. Go HERE for more information on Praying the Mass During Advent and all publications by Filii Passionis.

O Oriens, splendor lucis aeternae, et sol justitiae: veni, et illumina sedentes in tenebris, et umbra mortis.

O Morning Star, splendour of light eternal and sun of righteousness: Come and enlighten those who dwell in darkness and the shadow of death.

Isaias 9:2

The people that walked in darkness, have seen a great light; to them that dwelt in the region of the shadow of death, light is risen.

Malachias 4:1-3

For behold the day shall come kindled as a furnace: and all the proud, and all that do wickedly shall be stubble: and the day that cometh shall set them on fire, saith the Lord of hosts, it shall not leave them root, nor branch. But unto you that fear my name, the Sun of justice shall arise,  and health in his wings: and you shall go forth and shall leap like calves of the herd. And you shall tread down the wicked when they shall be ashes under the sole of your feet in the day that I do this, saith the Lord of hosts.

Check out my publication which provides commentary on the O Antiphons, in addition to direction on how to pray the Mass during Advent. This publication is a perennial addition to your library. Go HERE for more information on Praying the Mass During Advent and all publications by Filii Passionis.

O clavis David, et sceptrum domus Israel: qui aperis, et nemo claudit; claudis, et nemo aperit: veni, et educ vinctum de domo carceris, sedentem in tenebris, et umbra mortis

O Key of David, and scepter of the house of Israel, who opens and no man shuts, who shuts and no man opens: come, and lead forth the captives who sits in the shadows of prison and the darkness of death.

Isaias 22:22
And I will lay the key of the house of David upon his shoulder: and he shall open, and none shall shut: and he shall shut, and none shall open.

Isaias 9:6
For a child is born to us, and a son is given to us, and the government is upon his shoulder: and his name shall be called Wonderful, Counsellor, God the Mighty, the Father of the world to come, the Prince of Peace.

O Radix Jesse, qui stas in signum populorum, super quem continebunt reges os suum, quem gentes deprecabuntur: veni ad liberandum nos, iam noli tardare.

O Root of Jesse, that stands for an ensign of the people, before whom the kings keep silence and unto whom the Gentiles shall make supplication: come, to deliver us, and tarry not.

Isaias 11:1
And there shall come forth a rod out of the root of Jesse, and a flower shall rise up out of his root.

Isaias 11:10
In that day the root of Jesse, who standeth for an ensign of the people, him the Gentiles shall beseech, and his sepulchre shall be glorious.

Micheas 5:1
Now shalt thou be laid waste, O daughter of the robber: they have laid siege against us, with a rod shall they strike the cheek of the judge of Israel.

Romans 15:8-13
For I say that Christ Jesus was minister of the circumcision for the truth of God, to confirm the promises made unto the fathers. But that the Gentiles are to glorify God for his mercy, as it is written: Therefore will I confess to thee, O Lord, among the Gentiles, and will sing to thy name. And again he saith: Rejoice, ye Gentiles, with his people. And again: Praise the Lord, all ye Gentiles; and magnify him, all ye people. And again Isaias saith: There shall be a root of Jesse; and he that shall rise up to rule the Gentiles, in him the Gentiles shall hope. Now the God of hope fill you with all joy and peace in believing; that you may abound in hope, and in the power of the Holy Ghost.

Apocalypse 5:1-5
And I saw in the right hand of him that sat on the throne, a book written within and without, sealed with seven seals. And I saw a strong angel, proclaiming with a loud voice: Who is worthy to open the book, and to loose the seals thereof? And no man was able, neither in heaven, nor on earth, nor under the earth, to open the book, nor to look on it. And I wept much, because no man was found worthy to open the book, nor to see it. And one of the ancients said to me: Weep not; behold the lion of the tribe of Juda, the root of David, hath prevailed to open the book, and to loose the seven seals thereof.

Check out my publication which provides commentary on the O Antiphons, in addition to direction on how to pray the Mass during Advent. This publication is a perennial addition to your library. Go HERE for more information on Praying the Mass During Advent and all publications by Filii Passionis.

O Adonai, et Dux domus Israel, qui Moysi in igne flammæ rubi apparuisti, et ei in Sina legem dedisti: veni ad redimendum nos in brachio extento.

O Adonai, and Ruler of the house of Israel, Who didst appear unto Moses in the burning bush, and gavest him the law in Sinai, come to redeem us with an outstretched arm!

Isaias 11:4-5
But he shall judge the poor with justice, and shall reprove with equity the meek of the earth: and he shall strike the earth with the rod of his mouth, and with the breath of his lips he shall slay the wicked. And justice shall be the girdle of his loins: and faith the girdle of his reins.

Isaias 33:22
For the Lord is our judge, the Lord is our lawgiver, the Lord is our king: he will save us.

Check out my publication which provides commentary on the O Antiphons, in addition to direction on how to pray the Mass during Advent. This publication is a perennial addition to your library. Go HERE for more information on Praying the Mass During Advent and all publications by Filii Passionis.

O Sapientia, quae ex ore Altissimi prodidisti, attingens a fine usque ad finem, fortiter suaviter disponensque omnia: veni ad docendum nos viam prudentiae. 

O Wisdom, who came from the mouth of the Most High, reaching from end to end and ordering all things mightily and sweetly, Come, and teach us the way of prudence.

Isaias 11:2-3
And the spirit of the Lord shall rest upon him: the spirit of wisdom, and of understanding, the spirit of counsel, and of fortitude, the spirit of knowledge, and of godliness. And he shall be filled with the spirit of the fear of the Lord, He shall not judge according to the sight of the eyes, nor reprove according to the hearing of the ears.

Isaias 28:29
This also is come forth from the Lord God of hosts, to make his counsel wonderful, and magnify justice.

Check out my publication which provides commentary on the O Antiphons, in addition to direction on how to pray the Mass during Advent. This publication is a perennial addition to your library. Go HERE for more information on Praying the Mass During Advent, in addition to all the other publications of Filii Passionis.