LT,
Too bad not not too late to change your mind LT. After introducing Adam and the last Adam he teaches that this last Adam is our life giver. And this last Adam (formally the Word we now know) was from heaven. This is basically the same thing John taught in John 1:1-14.
47 The first man is of the earth, earthy: the second man is the Lord from heaven.
But Paul goes a little farther since this man became the first immortal human being on earth. Our hope therefore is no longer in an Adam like mortal resurrection like Lazarus had but one to immortal human life like the second man (Jesus Christ ) from heaven gained for us.
48 As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly.
It is the image of this immortal one that we will bear.
49 And as we have borne the image of the earthy, we shall also bear the image of the heavenly. (second Adam the man the human being under discussion)
Joseph