Psalms 138:8
The LORD will perfect that which concerneth me: thy mercy, O LORD, endureth for ever: forsake not the works of thine own hands. The LORD will perfect that which concerneth me: thy mercy, O LORD, endureth for ever: forsake not the works of thine own hands.
The promise stands as the closing plea of worship bowed toward the holy temple, praising lovingkindness and truth magnified above the divine name, thanking the One who answers crying with strength in the soul, whose glory all kings of the earth shall praise and sing, who regards the lowly, who revives in the midst of trouble and saves by the right hand against enemies. It declares confidence that the Lord will bring to completion and perfect what concerns the speaker and His people because His mercy endures forever, pleading with Him not to abandon or forsake the works of His own hands, for He has not forsaken His work. It is a prayer of dependence on God, joined to the desire of a sincere servant to follow the divine will.
The Lord completes what concerns those who wash their robes white in the blood of the Lamb, and His enduring mercy means He revives and saves them in the midst of trouble and resistance and does not forsake the work of His hands. The promise gives encouragement and hope that lifts the weary and discouraged to thanksgiving, praise, rejoicing, living hope, and living service. Its fulfillment calls for faith in God that keeps hold on the Lord God of Israel as the greatest need, for looking on the dark side loses that hold, and opening the heart to fears and conjectures hedges up the path of progress with unbelief. In severe trials believers are therefore to stand firm, stay sweet under trial, stay converted under trying circumstances, honor the One who gave His life to redeem them, reveal divine grace, and overcome by the blood of the Lamb and the word of testimony, until they receive welcome into the city of God in the day of final reckoning.