Complete: 'For unto us a child is born...'

Answer: Unto us a son is given

For to us a child is born, to us a son is given.

“For unto us a child is born, unto us a son is given, and the government will be upon His shoulders. And He will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.”— Isaiah 9:6 (BSB)