Posted at Reformation Scotland : For many the instruction to “guard your heart” means controlling your emotions, specifically in relation to the opposite sex. Others use it to emphasise resisting impurity. These applications tell us more about current evangelical preoccupations than what Proverbs 4:23 means by the heart and how we are to keep it. It is a much more difficult, comprehensive and urgent task than these specific counsels suggest. It is certainly urgent and essential. John Flavel said that keeping our heart “is the most important business of a Christian’s life”. “It is the great work of a Christian, in which the very soul and life of religion consists, and without which all other duties are of no value with God”. Andrew Gray spent considerable time explaining these matters. The following is extracted and updated from his three sermons on Proverbs 4:23. Read more here.