Transgression speaks to the wicked deep in his heart; there is no fear of God before his eyes.
David is not simply marveling at God's patience with the wicked in general, but crying out from genuine affliction: grievously troubled by ungodly men, he flees to God's infinite goodness as his only refuge and consolation. The whole psalm arms him against their assaults by anchoring him in the certainty of God's protection.
AI summary
Commenting on Psalm 36:1-12
The transgression of the wicked. His daring and wanton sin; his breaking the bounds of law and justice. Saith within my heart, that there is no fear of God before his eyes. Men's sins have a voice to godly ears. They are the outer index of an inner evil. It is clear that men who dare to sin constantly and presumptuously cannot respect the great Judge of all.
David, in the title of this psalm, is styled the servant of the Lord; why in this, and not in any other, except in Ps. 18 (title), no reason can be given; but so he was, not only as every good man is God's servant, but as a king, as a prophet, as one employed in serving the interests of God's kingdom among men more...
Commenting on Psalm 36:1-4