This is a very ancient hymn originally from France--a hint of Latin in the chorus-- the language of the Christian church long before and after there grew the French, Italian and Spanish languages.

Here's a recent rendition.

Angels we have heard on high

Sweetly singing o’er the plains

And the mountains in reply

Echoing their joyous strains

CHORUS:

Gloria, in excelsis Deo!

Shepherds, why this jubilee?

Why your joyous strains prolong?

What the gladsome tidings be

Which inspire your heavenly song?

Chorus

Come to Bethlehem and see

Him Whose birth the angels sing;

Come, adore on bended knee,

Christ the Lord, the newborn King.

Chorus

See Him in a manger laid

Jesus Lord of heaven and earth;

Mary, Joseph, lend your aid,

With us sing our Savior's birth.