God created man in his image, in the divine image he created them; male and female he created them: “Be fertile and multiply; fill the earth and subdue it” (Gen 1: 28).
This is the very first thing that God chooses to say about us in the Bible! That He created us in His own divine image. Man and woman were created as the crown of creation, invited to become one flesh, joined together to bring forth new life and love in a sacramental, visible sign of Trinitarian communion and to transfer this love throughout creation.
In the Theology of the Body John Paull II wrote,
The human body, with its sex—its masculinity and femininity—seen in the very mystery of creation, is not only a source of fruitfulness and of procreation, as in the whole natural order, but contains “from the beginning” the “spousal” attribute, that is, the power to express love: precisely that love in which the human person becomes a gift—and through this gift—fulfills the very meaning of his being and existence. (JPII, Man and Woman, He Created Them, No. 15.1) …..