In this Psalm, David is asking God for help in avoiding sins that stem from pride or arrogance. Another name for these type of willful sins in the Bible was presumptuous sins…intentional acts of rebellion against God’s commandments. It’s when we think we know better than God, or as Numbers 15:30 warns us of high handed people who sin defiantly, having no regard for God or His Laws. It’s plowing ahead with a selfish desire and then asking God to bless it in hindsight. Or asking someone to pray about a decision you need to make…all the while having already made it… overstepping God’s counsel and assuming you know best.