Our hearts are deceptive and they hold alot of things that we know and don't know. Our hearts can lead us astray (most times it has) and our lives are often a reflection of what's in our hearts.

Asking God to search our hearts should be a daily practice, daily prayer, asking Him to show us, to reveal what we don't know and what we do know, for Him to heal and restore. King David knew that his heart wasn't always right or true and he was honest with God about this. 

We chat about letting God in, letting God show us so that we can be good and faithful servants to Him and in our lives and to the people around us. Everything flows from our hearts, so let's let God be Lord over our hearts.