Law of Purity
Deuteronomy 5:21
Neither shall you desire your neighbor's wife, neither shall you covet your neighbor's house, his field, or his manservant…


The last of the Ten Commandments is the most important; it relates to the heart, out of which are the "issues of life." It is a law that cannot be broken by any word that man may speak, by any act that he may perform. It is descriptive of character, and supposes a moral state out of which flow all motives, desires, thoughts, words, and deeds. All the other commandments are violated by an act or a word; but the tenth is supremely mental in its scope and purpose. In this last of the Divine ten precepts is the law of desire. To covet is to desire the "forbidden fruit." It is not external, but internal; it relates to what a man thinks and feels. A desire is a conception, a wish, an inclination, an aspiration, which may or may not lead on to action. The penalty is not stated. Will it not be exclusion from God? The great thought is desire within the limitations of law. There is a pleasurable, beneficent, lawful exercise of desire. There is a covetousness that is right and commendable. We are commanded to "covet earnestly the best gifts," and to "covet to prophesy" — that is, to teach the way of the Lord. Intense desire is indispensable to success. What were life without aspiration? Desire nerves the soul, stimulates the intellect, animates the mind. Men may aspire to all knowledge, to the largest wealth, to the highest honours, to the greatest achievements, to the widest influence, to boundless usefulness, to all attainable purity; but God must be supreme; principle the rule; charity the end. A man may desire a wife, but not another's; a horse, but not his neighbour's; a trusty servant, but not to the disadvantage of an employer; an ox, an ass, a field, but not to the injury of its owner. How execrable the man who lessens the esteem of a husband for the woman he has wedded and then ingratiates himself in the affections of that alienated wife that he may have her! The imagination is the domain wherein the law of purity operates, and therein should hold supreme sway. No other mental faculty is so potent in the formation of the character and in giving direction to the destiny of men and nations. The imagination rules the world for good and evil. The sacred writers couple the imagination with the heart, which is neither accidental nor incidental, but is done with intelligent intent. It is to remind us of the immense power of this masterful faculty over the great passions of our nature. To capture, control, purify, refine, elevate this dominating power of the soul is the mission of the law of purity: "Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ." How beneficent is the imagination when subject to law; how malevolent its influence when unrestrained and lawless! Like the reason and the memory, the imagination is subject to discipline and the sovereign will of man. This law of purity demands a passive state and an active manifestation. Christianity is the religion of the imagination. Christ is the only religious Teacher known to man who demands of His people a moral condition antecedent to act of devotion. If God is not a respecter of persons He is of character, and that He has foreordained unto eternal life. Christ's demand for a moral condition antecedent to all mental and physical action is in harmony with the order of nature. There is a passive state of our muscular forces and intellectual powers upon which the active depends, and of which the active is the living expression. If the arm is strong to defend, there must be healthfulness in the muscles thereof. If the faculties of the mind respond to the will, there must be latent vigour in the intellect. Man's moral nature is both passive and active, and experience is in proof that as is the passive so is the active. If the affections respond only to objects of purity, if the conscience only to the voice of right, if the will only to the call of duty, there must be inherent purity and strength in all our moral powers when quiescent. Christ is the Saviour and Sovereign of the heart wherein He incarnates purity. He must be at the fountainhead of life, that the issues thereof may be Divine. And it is a matter of experience that with purity there comes an intellectual elevation, a sharpening and quickening of all the mental powers, whereby the "perfect man in Christ" discerns more readily between right and wrong; and the heavenly calm that reigns in all his being, and the "perfect peace" wherein he is ever kept, conduce to tranquillity of intellect, correctness of taste, candour of intention, carefulness of judgment, and impartiality, of decision. The imagination acts directly on the moral character, and by its abuse the will is weakened, the mental energy is dissipated, and the whole life is polluted. Purity and happiness are inseparable. In nothing more is the beneficence of the Creator apparent than in His ordination that happiness here and hereafter shall flow out of the character of a man. The blessings of human life, such as honourable birth, liberal education, ample fortune, high social position, renown among men, abundance of health, and length of days, may contribute to the repose of soul and add to the joy of life; but these can never be the radical source of happiness. The whole history of the world is a proof that happiness never flows into a man, but rather flows out of him. And what is true of earth will be true of heaven. Such was the conception of the Psalmist, who sings, "I shall be satisfied, when I awake, with Thy likeness."

(J. P. Newman, D. D.)



Parallel Verses
KJV: Neither shalt thou desire thy neighbour's wife, neither shalt thou covet thy neighbour's house, his field, or his manservant, or his maidservant, his ox, or his ass, or any thing that is thy neighbour's.

WEB: "Neither shall you covet your neighbor's wife; neither shall you desire your neighbor's house, his field, or his male servant, or his female servant, his ox, or his donkey, or anything that is your neighbor's."




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