Psalm 138:8

This verse expresses confident trust that the LORD will complete the good work He has begun in the believer's life. "Perfect that which concerneth me" means God will bring to fulfillment everything that pertains to the psalmist -- finishing what He started, accomplishing His purposes for this person. It is a statement of settled assurance, not anxious hope.

The confidence rests on God's enduring mercy: "thy mercy, O LORD, endureth for ever." Because God's steadfast love never fails, His commitment to His people will not falter halfway. The verse then turns to prayer: "forsake not the works of thine own hands." The psalmist appeals to God on the ground that he is God's own handiwork -- and an artisan does not abandon what he has made. This is a beautiful logic of faith: the One who began a work in us has both the love and the faithfulness to carry it through. The verse holds together quiet confidence and humble dependence, trusting God's purposes while still asking Him not to let go. For the weary believer, it is a reassurance that God finishes what He starts in those who are His.