Sanctification is the work of God's Spirit1 , whereby we are renewed in the whole man after the image of God2 , and are enabled more and more to die to sin, and live to righteousness.3
13 But we are bound to give thanks alway to God for you, brethren beloved of the Lord, because God hath from the beginning chosen you to salvation through sanctification of the Spirit and belief of the truth:
Ephesians 4:24
24 And that ye put on the new man, which after God is created in righteousness and true holiness.
Romans 6:11
11 Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.