Hosea 2:19

How great is God's mercy! A prostitute fornicates with many lovers, and because of her offense is handed over to the beasts. After she returns to her husband, she is said not at all to be reconciled to him but rather to be betrothed. Now notice the difference between God's union and that of men. When a man marries, he turns a virgin into a woman—that is, a nonvirgin. But when God joins with prostitutes, he changes them into virgins.

First, he [God] betrothed her [Israel] in Abraham (or rather, in Egypt) so that he may have an everlasting spouse. Second, on Mount Sinai in the betrothal, he gave her the equity and judgment of the law and the compassion added to the law, so that whenever she should sin she would be given up into captivity; whenever she should show penitence, she would be brought back to [her] homeland, and she would gain compassion.… By his crucifixion and resurrection from the dead, he [Jesus] betroths [her] not in the equity of the law but rather in faith and the grace of the gospel.

The sixth degree of chastity is that he not be deluded by the alluring images of women even when asleep. For although we do not believe that this delusion is sinful, nonetheless it is an indication of a desire that is still deeply ingrained. It is evident that this delusion can occur in a number of ways. For each person is tempted, even while asleep, according to how he behaves and thinks while awake. Those who have known sexual intercourse are led astray in one way, those who have had no part in union with a woman in another way. The latter are usually disturbed by simpler and purer dreams, such that they can be cleansed more easily and with less effort. But the former are deceived by filthier and more explicit images until, gradually and according to the measure of chastity for which each is struggling, even the mind that has fallen asleep learns to hate what it used to find pleasurable, and, through the prophet, the Lord grants it what is promised to brave men as the highest reward for their labors: "I will destroy the bow and the sword and war from your land, and I will make you sleep securely."

You have wisely thought it a subject of inquiry, whether there be any difference in God's love towards those who have believed from their childhood, and those who have believed in the course of their youth or more advanced age; for this also has not been past over nor left unnoticed in the sacred Scriptures. For it is not without meaning that the Lord our God says to the Prophet Joel, Lament to me for the spouse girded with sackcloth and for the husband of her youth, expressing his grief for the Synagogue, who, before, in her virginity, had been espoused to the Word of God, or, it may be, for a soul which had fallen from her good deeds, that by the heinousness of her sins she had incurred hatred, and through the defilement of impiety and the stains of unbelief had become miserable and despised, and far removed from the grace of that Spouse which had before been counted worthy to be told, I will betroth thee unto Me in righteousness and in judgment and in loving kindness and in mercies.

A betrothed woman was chosen, so that Christ's church might already be symbolically indicated as bride, according to the words of the prophet Hosea: "I will make you my bride in justice and right; I will make you my bride in mercy and benevolence, and …