1 Peter 1:2

2 according to the foreknowledge of God the Father, by the sanctifying work of the Spirit, to obey Jesus Christ and be sprinkled with His blood: May grace and peace be yours in the fullest measure.

Here in verse two, Peter introduces these alien recipients as people who have been chosen according to the foreknowledge of God the Father. This means that God predetermined their salvation; and He did it by the sanctifying work of His Spirit, by which He made them holy (justified and righteous by His blood). But in addition to their justification, they were chosen to daily obey Jesus Christ by faith (Rom. 1:5), and also, to obtain a daily cleaning from sin, which Peter calls here to be “sprinkled with His blood.” This daily cleansing may be accomplished by a regular confession of sins, with the promise of His forgiveness and cleansing (1 Jn. 1:9), and by our understanding, in our faith, that the Lord automatically and continually forgives and cleanses His own (1 Jn. 1:7).

And so, according to what God has declare to us, we may have, and are welcome to have, a full measure of God’s grace and peace.