Had we no other authority than what these verses furnish, here is enough to prove, that after all our knowledge of ourselves, we have not arrived to the perfect apprehension to what a state of sin and self-deception man is reduced by the fall. But however ignorant we are of ourselves to the Lord, the most secret thoughts of our heart are open. What an argument ariseth from hence, to beg the Lord to cleanse us from our secret faults, and to bring us to the fountain opened for sin and for uncleanness. Psalms 19:12; Zechariah 13:1.
Related Commentaries of Jeremiah 17:9
Jeremiah 17:9-10
9 The heart is deceitful above all things, and desperately wicked: who can know it?
10 I the LORD search the heart, I try the reins, even to give every man according to his ways, and according to the fruit of his doings.