"God created man in his own image . . . male and female he created them"; 115 He blessed them and said, "Be fruitful and multiply"; 116 "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." 117
Catechism number 2336
Jesus came to restore creation to the purity of its origins. In the Sermon on
the Mount, he interprets God's plan strictly: "You have heard that it was
said, 'You shall not commit adultery.' But I say to you that every one who
looks at a woman lustfully has already committed adultery with her in his
heart."122 What God has joined together, let not man put
asunder.123
The tradition of the Church has understood the sixth commandment as
encompassing the whole of human sexuality.