1 Corinthians 15:45

And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit. So - in accordance with the distinction between the natural, or animal-souled, and the spiritual bodies.

It is written (Genesis 2:7), "Man became (was made to become) [ egeneto (G1096) eis (G1519)] a living soul" - i:e., endowed with an animal soul, the living principle of his body.

The last Adam - the LAST Head of humanity, who is to be fully manifested in the last day, which is His day (John 6:39). He is so called in Job 19:25; note there. (Compare Romans 5:14.) In contrast to "the last," Paul calls "man" "the FIRST Adam."

Quickening - not only living, but making alive (John 5:21; John 6:33; John 6:39; John 6:54; John 6:57; John 6:62-43; John 11:25; Romans 8:11; "Christ IS the resurrection and the life;" not merely gives them: the gift is not held by the recipient independently of the Giver, but by the believer becoming "one spirit" with Him (Isaiah 26:19; 1 Corinthians 6:17). As the animal-souled body (1 Corinthians 15:44) is the fruit of our union with the first Adam, an animal-souled man, so the spiritual body is the fruit of our union with the second Adam, the quickening Spirit (2 Corinthians 3:17). Since He became representative of all humanity in His union of the two natures, He exhausted in His own person the sentence of death passed on all, and giveth spiritual and everlasting life to whom He will.