Especially now, as the author has expressed his deep admiration for God’s beautiful law and also declares his sincere desire to live according to God’s will, he realizes that he is unable to fathom all his wrongdoings. Here we see a shimmer of what the apostle Paul later writes in Romans 7:21–24: “So I find it to be a law that when I want to do right, evil lies close at hand. For I delight in the law of God, in my inner being, but I see in my members another law waging war against the law of my mind and making me captive to the law of sin that dwells in my members. Wretched man that I am! Who will deliver me from this body of death?”
The author of Psalm 19 knows what he must do. He quickly pleads with God: Forgive me please for hidden sins
(compare with Leviticus 5:2–6, and Numbers 15:22–26). He calls upon God’s forgiving grace. The apostle Paul says it even more clearly: Thanks be to God through Jesus Christ our Lord
(Romans 7:25a). How glorious it is that in Jesus Christ we have received a perfect Saviour. We can be sure of that. As the angel of God spoke to Joseph about the child that Mary carried in her womb: She will bear a son, and you shall call his name Jesus, for he will save his people from their sins
(Matthew 1:21).
12 Who can discern his errors? Declare me innocent from hidden faults.