Commentaries:
Who among us really knows how much we sin? Who is really aware of how vile we are? Who even knows all the sins he has committed or are in the process of committing? Who knows how defiled we are by our flesh? How strong human nature is in us still—after who knows how many years of being in the church? So David says, "Cleanse me from the faults that I don't know about, others don't know about, that I've hidden from myself, that I didn't even know were sin."
Richard T. Ritenbaugh
Presumptuousness
Secret faults are sins that we commit that we do not see or recognize as sins. We commit them not knowing we have committed sin. Nevertheless, we are still held accountable for our actions, and we will eventually pay the penalty. Ignorance of the law is no excuse. Presumptuous sins are willful sins, ones we do knowing that they are sin before we commit them. Such willful sins, depending on one's attitude, can be spiritually very dangerous.
The godly man is not only concerned about avoiding committing sins willfully, but also with extracting those hidden sins that are committed unknowingly. Because we so often allow our carnal natures to dominate us, we remain blind to many of our sins and character flaws until God reveals them to us through the Holy Spirit.
Martin G. Collins
Comparing Ourselves Among Ourselves
David showed no hostility toward God, and he tried hard to change whenever he could see that he was wrong. However, he could not always see it. For instance, David stole Bathsheba, the wife of Uriah, and she became pregnant. After conniving and cheating in an attempt to avoid the consequences, David intentionally arranged for Uriah to be killed in battle.
Incredible as it may seem, David did not see how terribly wrong his sexual immorality in both his thoughts and actions was. He broke both the spirit and letter of the law. Not until the prophet Nathan brought him to his senses did spiritually blind David realize his sinful behavior.
Nevertheless, we cannot judge David too harshly, since our vision is likewise clouded regarding many of our problems. It is hard enough to recognize and admit the problems we can see, much less the ones we cannot. Rather than judge him, we can actually identify with David.
Martin G. Collins
The Law's Purpose and Intent
Other commentary entries containing this verse:
Luke 12:47-48
John 4:23-24
2 Corinthians 13:5