Catechism of the Catholic Church

"God is love and in himself he lives a mystery of personal loving communion. Creating the human race in his own image... , God inscribed in the humanity of man and woman the vocation, and thus the capacity and responsibility, of love and communion." (1604) "God created man in his own image... male and female he created them"; He blessed them and said, "Be fruitful and multiply"; "When God created man, he made him in the likeness of God. Male and female he created them, and he blessed them and named them Man when they were created."