Man would be intolerable to himself, and look out every way for help, if it was not for his pride. (Thomas Adam, Private Thoughts on Religion)
“The heart is more deceitful than all else And is desperately sick; Who can understand it?” (Jeremiah 17:9)
If God would make it possible for man to see himself, his heart, and his behavior and yet have it be seen in another person, man would be intolerable to himself. What men hate about others, they tolerate and excuse about themselves. What annoys men in others; they think is humorous in themselves. If men could see their own sinful hearts in another and not know it was theirs, they would judge the other very harshly. If men could read the thoughts of another, even though the thoughts would be exactly as his or her own, they would blast the other person as vile and wicked.
Men justify themselves and their own sinful thoughts and hearts to themselves, yet when those things are in others they blast away. A proud and self-centered heart will find ways to excuse itself because it knows its own motives and deceives itself into thinking that its own motives are good, yet for others they see the bare act and will condemn the act quickly and with strength. It is so easy for proud man to condemn others for the very same thing that he does with many excuses and self-justifications.
If men were not so proud and would honestly look at their own lives and hearts, they would seek others and the Lord for help. If they were not so proud and blinded by that pride they would be intolerable to themselves. The more one comes to know something of the glory of God the more one sees the motives and intents of his of her own heart. Before the light begins to shine, proud man is almost perfect in his own self-justifying reason. As the light shines brighter, man begins to have a lesser view of self. The brighter the light shines in the heart, the more a man begins to loathe himself at times. But the proud heart is blinded by its pride and so it never sees the truth about itself. When one sees through the lenses of self-love and self-esteem, one does not see all the wickedness and vileness that resides in the heart.
We see an illustration of this in the story of David when the prophet Nathan confronted him with a parable or a story. David was livid at the thought that a rich man would take a poor man’s only lamb in order to feed his guest with. However, David had committed a far greater sin in taking the wife of another man. David was blinded to his own sin, most likely by a series of self-justifications suited to a proud heart full of self-love. When his sin was pointed out to him and the Lord opened his eyes to it, he was stricken in heart.
What we must notice about our own hearts is that we are far more wicked and blind than we can imagine. We should seek the Lord to show us the truth of our own hearts, but we must not be surprised if we begin to get sick of ourselves. The blackness and depravity of the heart is not taken away when a person makes a moral change, but instead a moral change can instead blind a person to the heart by what it thinks is the beauty of its own morality. It is also true that the true believer has far more depravity in his or her heart than s/he can imagine. This will drive the person to wonder how a person that has so much sin in the heart can be a Christian in truth. But people are saved by grace alone based on the righteousness of Christ alone and not how much sin they have left in their hearts. It is the grace of God that He begins to show a person the extent of the depravity of the heart and does so more and more as the person matures in the faith. As the grace of God shows us our sin, the grace of God also shows us the glory of Christ and His free gift of righteousness that comes by grace alone.
It is important for the unbeliever to grow in knowledge of his or her sinful nature and of the depravity of the heart. This is true so that the unbeliever will be driven off of self and hope in self to see that the only real hope is in Christ. It is also important for the true believer to grow in knowledge of his or her sinful nature and the remaining depravity of his or her heart. This is so that the believer will grow in humility and contrition before God and grow in the understanding of the extent of his inability and the extent of his need for grace. Until believers grow in their sense and understanding of their own depravity and inability, they will not see the extent of their need of grace each moment and the need to walk by grace alone. Pride blinds and God opposes the proud. How we need grace.