In Psalm 139, David asks God to search him and know his heart, to test him and know his anxious thoughts. As believers, we need to continuously go to the Lord and have Him search us like David asked in Psalm 139. We know that the end times are near, so we must prepare and choose to trust God and His word. When we let the Lord search our heart, it's like a grand slam; if we confess, the Lord will forgive our sin, and that is an incredible blessing.