Psalm 117 - "...Praise ye the LORD" - Reason #2 to Praise the Lord. The phrase "for his mercy endureth for ever" is repeated 26x's in 26 verses in Ps. 136. I wonder if God is trying to make a point. Praise Him for His MERCY, We don't deserve it, yet He freely gives it!! PRASIE THE LORD!! I trust that you will take time to read Ps. 136. I will be listing 20 reasons to Praise the Lord.