2 Corinthians 11:2

And therefore he added, "For I am jealous over you with a godly jealousy." He did not say, "for I love you," but uses a term far more vehement than this. For those souls are jealous which burn ardently for those they love, and jealousy can in no other way be begotten than out of a vehement affection. Then that they may not think, that it is for the sake of power, or honor, or wealth, or any other such like thing, that he desires their affection, he added, "with a jealousy of God." For God also is said to be jealous, not that any should suppose passion, (for the Godhead is impassible,) but that all may know that He doeth all things from no other regard than their sakes over whom He is jealous; not that Himself may gain aught, but that He may save them. Among men indeed jealousy ariseth not from this cause, but for the sake of their own repose; not because the beloved ones sustain outrage, but lest these who love them should be wounded, and be outshone in the good graces, and stand lower in the affections, of the beloved. But here it is not so. "For I care not," he says, "for this, lest I should stand lower in your esteem; but lest I should see you corrupted. For such is God's jealousy; and such is mine also, intense at once and pure." Then there is also this necessary reason; "For I espoused you to one husband, as a pure virgin." "Therefore I am jealous, not for myself, but for him to whom I have espoused you." For the present time is the time of espousal, but the time of the nuptials is another; when they sing, "the Bridegroom hath risen up." Oh what things unheard of! In the world they are virgins before the marriage, but after the marriage no longer. But here it is not so: but even though they be not virgins before this marriage, after the marriage they become virgins. So the whole Church is a virgin. For addressing himself even to all, both husbands and wives, he speaks thus. But let us see what he brought and espoused us with, what kind of nuptial gifts. Not gold, not silver, but the kingdom of heaven. Wherefore also he said, "We are ambassadors on behalf of Christ," and beseeches them, when he was about to receive the Bride.