Hi Gem,
You wrote:
I just don’t see any indication from Scripture that the death which Adam experienced on the day he sinned changed his nature. Sinning is, I believe, a violation of our conscience and thus contrary to our moral nature, but it does not change our nature or alter our DNA. Nor do I read that Adam lost the divine image/likeness in which he was created when he sinned. I believe the divine image/likeness is a capacity with which we were created (and which all other animals lack), and that this capacity was fully realized by Christ. This capacity which defines us as God’s image-bearers can certainly fail to be fully realized for a period of time (as I believe is the case with all who are not yet sinless as Christ is), but it is not something that can be lost without our ceasing to be human. The apostle James lived long after Adam, and he seemed to believe that human beings even in his day still possessed the same divine likeness in which Adam was created (James 3:9).
I don’t see anything in these words suggesting that Seth was any less in the image and likeness of God as Adam was when he was created. To say that Adam begot a son in his own likeness is, I believe, simply to say that the nature with which Adam was created by God - and by which he was defined as a human being - was passed on to his posterity. The image and likeness in which God created Adam defined and belonged to Adam, and was thus his to “transfer.” I believe Seth - like all children - was born just as innocent as Adam was when he was created, and possessed the same original human nature and capacity to be like God. And if Seth had been born before Adam sinned I believe it could still be said that Adam “begot a son in his own likeness and after his image.”
I don’t think these verses either say or imply that Adam lost the divine image in which he was created. He failed to fully realize his potential as an image-bearer, yes, but he didn’t lose anything with which he was created. He was, I believe, just as much made in God’s likeness after he sinned as he was made in God’s likeness before he sinned. His nature as a human being didn’t change and his DNA wasn’t altered. Again, I believe the divine image/likeness is our created capacity as persons (as opposed to mere animals) to be like our Father in heaven. When we begin to resemble God more closely in character the capacity with which we were created can be said to be more fully realized. Whereas I believe all human beings are children of God by virtue of being created as persons, when we begin to resemble God in character we become his children (and God becomes our Father) in a fuller and more realized sense (Mt. 5:44-45, 48). For more on my understanding of the “Fatherhood of God,” you can check out the following post: The Universal Fatherhood of God
So basically I understand the new identity to which Paul refers when he speaks of the “new man” to be not the result of a “DNA transplant” (as you’ve said earlier in this thread) but rather as a result of the capacity with which we were created being more fully realized, and which we posses by virtue of being human. One has put on the “new man” when one has begun to not only be a child of God by virtue of being made in God’s image and likeness but to actually think as God thinks and be guided by the same desires, motives and values as God is.
Again, there is nothing said in this passage about Adam losing the divine image/likeness in which he was created, or of anyone inheriting anything from Adam with which he wasn’t created. Those to whom Peter wrote didn’t inherit an image-less nature from Adam but rather the “futile ways” of their “forefathers” (on the expression translated “futile ways” commentator Adam Clarke notes, “Empty, foolish, and unprofitable conduct, full of vain hopes, vain fears, and vain wishes”). Peter is, I believe, talking about unrighteous behavior and conduct which they are said to “inherit” from their forefathers because they were living like their forefathers lived and imitating them. Peter is talking to 1st generation Christians who, before coming to Christ, lived the way they did because they were brought up and entrenched in the beliefs and ways of their forefathers. Those whose parents and grandparents and great-grandparents were Muslim or Hindu - and who were thus raised Muslim or Hindu and grow up practicing Islam or Hinduism - can, in the same sense, be said to have “inherited” their beliefs and ways from their forefathers.
But even if one believes that Peter was speaking of something genetically inherited, I would simply argue that Adam was created with the same “fleshly” inclinations or disposition possessed by all of his descendents. Adam certainly didn’t need a genetically altered or “fallen” nature in order to so easily yield to temptation and violate God’s law, and neither do his descendents. And if Adam had been created not just innocent (as all newborn children are) but just as morally perfect as Christ is, I think he would’ve been just as unlikely to sin as Christ was and is (and I believe there is zero probability that Christ will ever sin).