O Jerusalem, wash your heart from wickedness, that you may be saved. How long shall your vain thoughts lodge within you?
I. THE EVIL OF PERMITTING VAIN THOUGHTS TO LODGE WITHIN US. By vain thoughts may be meant all unlawful desires, vile affections, wicked tempers, and mischievous imaginations of every kind. If these, or any other evil thoughts to which we are subject, lodge in our breasts, they must render our persons abominable to God, corrupt all our performances, and produce many bitter fruits.
II. THE NECESSITY OF WASHING OUR HEARTS FROM WICKEDNESS. As it would be madness in the husbandman to sow his seed upon ground that was covered with thorns, so it is equally foolish to expect the fruit of good living in any person whose heart lies fallow, unbroken, and overspread with the cares of the world, the deceitfulness of riches, and the lusts of other things, which our Saviour calls thorns.
Parallel VersesKJV: O Jerusalem, wash thine heart from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?