Albert Barnes on 1 Corinthians 15:49

And as we have borne the image of the earthy. As, like our first father, we are frail, decaying, dying; as we are so closely connected with him as to be like him. This does not refer, mainly, to one bearing his moral character, but to the fact that we are, like him, subject to sickness, frailty, sorrow, and death.

We shall also bear the image of the heavenly. The Lord Jesus Christ, who was from heaven, and who is in heaven. As we are so closely connected with Adam as to resemble him, so by the Divine arrangement, and by faith in the Lord Jesus, we are so closely connected with him that we shall resemble him in heaven. And as he is now free from frailty, sickness, pain, sorrow, and death, and as he has a pure and spiritual body, adapted to a residence in heaven, so shall we be in that future world. The argument here is, that the connexion which is formed between the believer and the Saviour is as close as that which subsisted between him and Adam; and as that connexion with Adam involved the certainty that he would be subjected to pain, sin, sickness, and death, so the connexion with Christ involves the certainty that he will, like him, be free from sin, sickness, pain, and death, and, like him, will have a body that is pure, incorruptible, and immortal.

(b) "also bear" Rom 8:29