Psalm 51:10 Create in me a clean heart, O God; and renew a right spirit within me.
This comes from a Psalm written by David after he'd gone in to Bathsheba. He's asking God for mercy and to forgive him of his transgressions. We all should remember it's important to ask Him for forgiveness, as our sin debt grows daily. 1 John 1:9 If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.
Our visiting missionary preached yesterday about having a clean heart and being cautious about what we allow into our hearts through our eyes and ears. He also noted that whatever our heart desires, our eyes will look at and our mouths will reveal. What does your heart desire? Does it desire the things of God? Does it desire to be a "clean heart"?
Oh Lord, Restore unto me the joy of thy salvation; (Psalm 51:12)