We bless Thee especially for sending, as on this day (which I will amend since the prayer is not said on Christmas Day to 'on Christmas Day'), thy well-beloved Son to take our nature upon Him, and to be made in the likeness of sinful flesh.
(anytime you get references to phrases like sinful flesh, which truly were used at the time, it's always fun to watch the other roleplayers react!)
We rejoice that unto us a Child is born ; that unto us a Son is given. And we would join the multitude of the heavenly host in praising Thee and saying, Glory to Thee in the highest; peace on earth ; good-will toward men.
And as, when Thou didst bring thy First begotten into the world, Thou didst command all the heavenly host to worship Him; so may we also give unto Him the glory which is due unto his name.
(now, I am omitting this paragraph, because, well, it's too hulking long ... O Thou great and glorious Redeemer, who art Wonderful Counsellor, the mighty God, the Everlasting Father, the Prince of Peace, we praise Thee, we bless Thee, we worship Thee, we glorify Thee, we give thanks to Thee for thy great glory, O Lord God, Lamb of God, the only-begotten Son, Jesu Christ, God of God, Light of Light, very God of very God, King of kings, and Lord of lords, Emmanuel, God with us. For Thou only art holy : Thou only art the Lord ; Thou only, O Christ, with the Holy Ghost, art most High in the glory of God the Father.
But chiefly, at this time, we adore Thee for leaving the glory which Thou hadst with the Father before the world began. We know thy grace, O Lord Jesus Christ, that though Thou wast rich, yet for our sakes Thou didst become poor, that we, through thy poverty, might be made rich.
We beseech Thee, by the mystery of thy holy incarnation and nativity, Good Lord, deliver us. O Son of David, have mercy upon us. Thou, who didst come that we might have life, and might have it more abundantly, be gracious unto us. Thou who wast called Jesus, that Thou mightest save thy people from their sins, save us, and help us, we humbly beseech Thee, O Lord.