428. As regards the actual pairing of evil and falsity, it should be known that evil loves falsity and wants to be one with it, so that they become joined. Likewise good loves truth and wants to be one with it, so that they become joined. It is obvious that just as the spiritual source of marriage is the marriage of good and truth, so the spiritual source of adultery is the pairing of evil and falsity. That is why this pairing is meant in the spiritual sense of the Word by adultery, fornication and prostitution (see THE APOCALYPSE REVEALED 134). This principle ensures that anyone in a state of evil who marries falsity, and anyone in a state of falsity who takes evil to share his bed, by forming such a compact strengthens his attitude in favour of adultery, and he commits it so far as he dares and can. He strengthens his attitude out of evil by means of falsity, and he commits it out of falsity by means of evil. The reverse is also true: anyone in a state of good who marries truth or anyone in a state of truth who takes good to share his bed, sets himself against adultery and in favour of marriage, and embraces a blessed married life.