Charles H. Spurgeon on Psalms 19:13

"Presumptuous sins." David prays that God would keep him back from "presumptuous sins," from known and evident sins, such as proceed from the choice of the perverse will against the enlightened mind, which are committed with deliberation, with design, resolution, and eagerness, against the checks of conscience, and the motions of God's spirit: such sins are direct rebellion against God, a despising of his command, and they provoke his pure eyes. —Alexander Cruden.