"Sanctification is commonly regarded as a process of moral and spiritual transformation following conversion. In the New Testament, however, it primarily refers to God’s way of taking possession of us in Christ, setting us apart to belong to him and to fulfil his purpose for us. Sanctification certainly has present and ongoing effects, but when the verb ‘to sanctify’ (Gk. hagiazein) and the noun ‘sanctification’ (Gk. hagiasmos) are used, the emphasis is regularly on the saving work of God in Christ, applied to believers through the ministry of the Holy Spirit." -David Peterson.