The Apostle Paul speaks about Christ being the prototype of all the sons of God, “For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren” (Rom. 8:29 AV). Calvin highlights this as being one of the greatest privileges that the believer enjoys as being an adopted son of God. He writes,
“God had so determined that all whom he has adopted should bear the image of Christ…that he might teach us that there is in Christ a living and conspicuous exemplar, which is exhibited to God’s children for imitation.”
Elsewhere he writes that
“the final end of our adoption is, that what has in order preceded in Christ, shall at length be completed in us…we have eyes prepared to see God.”
This conforming to Christ’s image will prepare the believer to behold Christ in his glory, removing impurities, weaknesses and sin.
*** Quotes taken from John Calvin, Calvin’s Commentaries on Romans, page 318 and Calvin’s Commentaries on 1 John, pages 205-6.