Words: Li­tur­gy of St. James, 4th Cen­tu­ry. Trans­lat­ed from Greek to Eng­lish by Ger­ard Moul­trie, 1864.
Music: Pi­ca­rdy French car­ol tune.
Arranged by Shelly Hamilton
Copyright © 2004 by Majesty Music of Greenville, SC
Part of the Christmas cantata "Goodwill to Men"
www.MajestyMusic.com

The full text:

Let all mor­tal flesh keep si­lence,
And with fear and trem­bling stand;
Ponder no­thing earth­ly mind­ed,
For with bless­ing in His hand,
Christ our God to earth des­cend­eth,
Our full hom­age to de­mand.

King of kings, yet born of Ma­ry,
As of old on earth He stood,
Lord of lords, in hu­man ves­ture,
In the bo­dy and the blood;
He will give to all the faith­ful
His own self for hea­ven­ly food.

Rank on rank the host of Hea­ven
Spreads its van­guard on the way,
As the Light of light des­cend­eth
From the realms of end­less day,
That the pow­ers of hell may van­ish
As the dark­ness clears away.

At His feet the six wing­èd se­raph,
Cherubim with sleep­less eye,
Veil their fac­es to the pre­sence,
As with cease­less voice they cry:
Alleluia, Al­le­lu­ia
Alleluia, Lord Most High!

(Information above taken from http://www.hymntime.com/tch/htm/l/e/t/a/letallmf.htm))