Psalms 86 is a prayer from David expressing a deep reliance on God for protection and help. The prayer highlights God's goodness, readiness to forgive, and unfailing love, contrasting God's power and uniqueness with that of "pagan" gods. David requests wisdom and purity of heart to live righteously, praising God for His immense love and deliverance from danger. The passage concludes with a plea for mercy and a sign of God's favor against those who oppose him.