O come, o come, Emmanuel,
And ransom captive Israel,
That mourns in lonely exile here,
Until the Son of God appear.
Rejoice! Rejoice! Emmanuel shall come to thee, O Israel!
Emmanuel means "God with us". Emmanuel is the foretold name of the Messiah in the Old Testament.
SONGS OF ADVENT AND CHRISTMAS:
O Come, O Come, Emmanuel
Making Music Praying twice has a nice printable for children to color to remind them of the name Emmanuel.
Bible Study Planet explains the verses of the songs. (Adult reading level)