On the Seventh Commandment.
The Longer Catechism of the Orthodox, Catholic, Eastern Church · St. Philaret of Moscow
585. What forms of sin are forbidden under the name of adultery? The Apostle Paul would have Christians not even to speak of such impurities. Eph. v. 3 . It is only of necessity, to forewarn people against such sins, that we shall here name some of them. Such are-- 1. Fornication; or irregular carnal love between unmarried persons. 2. Adultery; when married persons unlawfully give that love which they owe each other to strangers. 3. Incest; when near relations enter into a union like that of matrimony.
Q. 585
586. What does our Saviour teach us to think of adultery? He has said that Whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart. Matt. v. 28 .
Q. 586
587. What should we do in order to guard against falling into this subtle inward adultery? We should avoid every thing that may excite impure feelings in the heart; as wanton songs and dances, lewd conversation, immodest games and jokes, immodest sights, and the reading of books which contain descriptions of impure love. We should strive, according to the Gospel, not even to look on that which may cause us to fall. If thy right eye offend thee, pluck it out, and cast it from thee; for it is profitable for thee that one of thy members should perish, and not that thy whole body should he cast into hell. Matt. v. 29 .
Q. 587
588. Must we, then, literally pluck out the offending eye? We must pluck it out, not with the hand, but with the will. He who has firmly resolved not even to look upon that which causes him to offend hath already plucked out the offending eye.
Q. 588
589. When the sin of adultery is forbidden, what contrary virtues are thereby enjoined? Those of conjugal love and fidelity; and, for such as can receive it, perfect purity and chastity.
Q. 589
590. How does holy Scripture speak of the duties of man and wife? Husbands, love your wives, even as Christ also loved the Church, and gave himself for it. Eph. v. 25 . Wives, submit yourselves unto your own husbands, as unto the Lord; for the husband is the head of the wife, even as Christ is the head of the Church; and he is the Saviour of the body. Eph. v. 22, 23 .
Q. 590
591. What motives does holy Scripture set before us to make us flee fornication and live chastely? It bids us keep our bodies in purity, because they are the members of Christ , and temples of the Holy Ghost; while, on the other hand, he who committeth fornication sinneth against his own body; that is, corrupts it, infects it with diseases, and, further, hurts his mental faculties, such as imagination and memory. See 1 Cor. vi. 15, 18, 19 .
Q. 591