God's Prayers of Confession

In psalm 51 David says, here's the particular brand of the universal disease that i carry and the way that it's manifesting in me right now. And i'm going to name my sin completely and unfiltered, because i want healing completely and unfILTED. Later in psalm one 39, he says, search me, god and know my heart. Test me and know my anxious thoughts. See if there is any offensive way in me, and lead me in the way everlasting. What made david a man after god's own heart? Cause that's base what's inscribed on his tombstone. He was a liar, a manipulator, an adulterer,