From today's devotional
David asked God to search for sin and point it out, even to the level of testing his thoughts. This is exploratory surgery for sin. How are we to recognize sin unless God points it out? Then, when God shows us, we can repent and be forgiven. Make this verse your prayer. If you ask the Lord to search your heart and your thoughts, and to reveal your sin, you will be continuing on God's "path of everlasting life."