I Peter IV
…according to the foreknowledge of God the Father, in the sanctification of the Spirit, for obedience to Jesus Christ and for sprinkling with his blood:
May grace and peace be multiplied to you. (I Peter 1:2 ESV)
Sanctification is the theological word that refers to how Christians become more like Christ, and less like the way we used to be.
We become more obedient because of this sanctification.
We become more loving because of this sanctification.
We become more holy because of this sanctification.
We become better, and stronger, and wiser, and betterer, and strongerer, and wiserer because of this sanctification.
And in the end, and along the way, this sanctification is what God uses to multiply grace and peace in our lives.
Sanctification happens because of grace, and sanctification is the conduit of MORE grace.
Sanctification happens because of peace, and sanctification is the conduit of MORE peace.