Unto Obedience !
1 Pet 1:1-2
Peter, an apostle of Jesus Christ, to the strangers scattered throughout Pontus, Galatia, Cappadocia, Asia, and Bithynia,
2 Elect according to the foreknowledge of God the Father, through sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ: Grace unto you, and peace, be multiplied.
All for whom Christ died shall be made obedient which is an effect and fruit of the success of His Death. The Holy Spirit is responsible in the Covenant engagement to bring all for whom Christ died to obedience to the Faith Rom 16:26
But now is made manifest, and by the scriptures of the prophets, according to the commandment of the everlasting God, made known to all nations for the obedience of faith:
These here are the Elect of God, Elect according to the Foreknowledge of God the Father, because He chose them in Christ before the foundation Eph 1:3-4
3 Blessed be the God and Father of our Lord Jesus Christ, who hath blessed us with all spiritual blessings in heavenly places in Christ:
4 According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love:
Thats why they are the foreknown, and they were Chosen to Obedience or to Faith and the Holy Spirit brings that about, this comes through the New Birth for they are begotten again by the Resurrection of Jesus Christ from the Dead 1 Pet 1:3
3 Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead,
This is how the Elect begin their New Life of Obedience, for the word begotten us again in the greek is the word anagennaō and means:
to produce again, be born again, born anew
2) metaph. to have one's mind changed so that he lives a new life and one conformed to the will of God
We have our minds changed [repentance] so that we do live a new life, one conformed to the will of God, that's the beginning of Obedience !
This is but the fulfillment of the Covenant Promise that promised obedience Ezk 36:26-27
26 A new heart also will I give you, and a new spirit will I put within you: and I will take away the stony heart out of your flesh, and I will give you an heart of flesh.
27 And I will put my spirit within you, and cause you to walk in my statutes, and ye shall keep my judgments, and do them.
You see that ? Thats promised obedience ! This is the Ministry of the New Covenant, the administration of the Spirit 2 Cor 3:5-8, So the Apostles knew as they were directed to Preach the Gospel , they knew that those who obeyed, that God had given them the Spirit Ezk 36:27
27 And I will put my spirit within you, and cause you to walk in my statutes, and ye shall keep my judgments, and do them.
And so Peter declared that God had given the Spirit of promise to those obeying Him Acts 5:32
And we are his witnesses of these things; and so is also the Holy Ghost, whom God hath given to them that obey him.
Which are these 1 Pet 1:1-2
2 Elect according to the foreknowledge of God the Father, through sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ: Grace unto you, and peace, be multiplied.
If they were obeying, it was because they had partaken of the Holy Spirit's Sanctification !