Acts 3:26

Unto you first God, having raised up his Servant, sent him to bless you, in turning away every one of you from your iniquities.

Unto you first ... "To the Jew first ..." (Romans 1:16). This was the invariable rule of apostolic preaching; but the words inherently contain a prophecy that others shall receive the gospel also; and Peter's use of this slogan in context is a warning that the right to receive or reject the gospel never pertained to the Jew only, but to the Jew first; and afterward the Gentiles would also be called.

In turning ... from your iniquities ... The great blessing Jesus came to deliver was not a re-establishment of the old Solomonic empire, but a spiritual blessing marked by the forgiveness of sins, the reception of God's Spirit, and a turning of the people away from their wickedness. It is not hard to understand why secular Israel wanted no such blessings; millions of men in all generations are just like those ancient Israelites. Yet, significantly, many of the fleshly Israel were Israelites indeed; and they, along with the apostles, made up the original church of Jesus Christ in this world; and it may well be supposed that in all ages many people who literally descended from Abraham are now in the kingdom of Christ; although, to be sure, the acceptance of Christianity by one who is called a Jew leads at once to his loss of identity as a Jew, afterward being, not a Jew, but a Christian.