The mere desire of wanting that which is not yours, and entertaining that desire with any delight and approval and yearning, is itself rebellion against God, even if you have not outwardly acted on that desire. You may not have made the choice to take any action at all in taking away your neighbor’s wife from him, but the thought, the desire, still condemns you before God’s holy law.
The Law, though written on tablets of stone, is still able to condemningly penetrate into the depths of our hearts, and the last Commandment leaves us all with our “mouths stopped”, as Paul argues (Romans 3:19), that in our own strength we are unable to love the Lord our God with all our heart. Which is the tenth commandment? The tenth commandment is, “Thou shalt not covet thy neighbor’s house, thou shalt not covet thy neighbor’s wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor anything that is thy neighbor’s” (Exodus 20:17).
To covet (in the Hebrew khamad) is to desire and in and of itself the word does not alone denote anything evil or wrong. The word is used for legitimate desires as it’s used in Psalm 19:10, “More to be desired are [God’s word] than gold, even much fine gold.”[1] What makes coveteous desire wrong is the object of that desire, namely, if it what you’re desiring does not belong to you because it already belongs to someone else. Hence the repeated emphasis of thy neighbor’s house, neighbor’s wife, neighbor’s ox, etc. This is the sin of envy. Seeing something or someone that belongs relationally or legally to someone else and wanting – desiring – that person or thing. And therein lies the penetrating depth of this commandment.
It’s not merely acting on the desire that’s sinful. It is the desire itself that is sinful. That is, the mere desire of wanting that which is not yours, and entertaining that desire with any delight and approval and yearning, is itself rebellion against God, even if you have not outwardly acted on that desire. You may not have made the choice to take any action at all in taking away your neighbor’s wife from him, but the thought, the desire, still condemns you before God’s holy law. Does not Jesus himself strike this same note when he says, “You have heard that it was said, ‘You shall not commit adultery.’ But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart” (Matthew 5:27-28)?
Joel Beeke and Paul Smalley are absolutely right when they say that “the desire for evil is evil and arises from a sinful heart.”[2] There’s much to ponder here, especially in our current climate where many folks, even from within the church, argue that desire – any desire at all – is not evil or wrong, but only acting on those desires. Not so, according to the tenth commandment.