“Unto you first God, having raised up his Son Jesus, sent him to bless you, in turning away every one of you from his iniquities.”
King James Version (KJV)
3:26 To bless you, by turning you from your iniquities - Which is the great Gospel blessing.
Ac 3:26 Unto you first. To Israel first in order, before the Gentiles, but Peter here recognizes the fact that the Gospel is also for other races. Sent him to bless you. Not in person, but by the preaching of Christ as the Savior from sin. The best of all blessings is "the turning of them from iniquity", as that brings all others.