But we are bound to give thanks always to God for you, brethren beloved of the Lord, because God has from the beginning chosen you to salvation through sanctification of the Spirit and belief of the truth:
All Commentaries on 2 Thessalonians 2:13 Go To 2 Thessalonians 2
John Chrysostom
AD 407
How unto salvation? By sanctifying you through the Spirit. For these are the things that are the efficient causes of our salvation. It is nowhere of works, nowhere of righteous deeds, but through belief of the truth. Here again, in is used for through. And through sanctification of the Spirit, he says,