for a light of the Gentiles
The prophets connect the Gentiles with Christ in a threefold way"
(1) as the Light He brings salvation to the Gentiles (Luke 2:32); (Acts 13:47); (Acts 13:48).
(2) as the "Root of Jesse" He is to reign over the Gentiles in His kingdom. (Isaiah 11:10); (Romans 15:12). He saves the Gentiles, which is the distinctive feature of this present age. (Romans 11:17-24); (Ephesians 2:11); (Ephesians 2:12) He reigns over the Gentiles in the kingdom-age, to follow this.
See "Kingdom (Old Testament),"
(Genesis 1:26-28); (Zechariah 12:8).
(3) Believing Gentiles in the present age, together with believing Jews, constitute "the church which is His body."
( See Scofield) - (Ephesians 3:6).