1 Corinthians 15:45

(25) And so it is written, The (x) first man Adam was made a living soul; the last Adam [was made] a (y) quickening spirit.

(25) That is called a natural body which is made alive and maintained by a living soul only in the manner that Adam was, of whom we are all born naturally. And that is said to be a spiritual body, which together with the soul is made alive with a far more excellent power, that is, with the Spirit of God, who descends from Christ the second Adam to us.

(x) Adam is called the first man, because he is the root as it were from which we spring. And Christ is the latter man, because he is the beginning of all those that are spiritual, and in him we are all included.

(y) Christ is called a Spirit, by reason of that most excellent nature, that is to say, God who dwells in him bodily, as Adam is called a living soul, by reason of the soul which is the best part in him.