What does Psalm 138:8 teach us about God's mercy?

Psalm 138:8 emphasizes that 'Thy mercy, O Lord, endureth forever. Forsake not the works of thine own hands.' This underscores the dependence on God's mercy for our salvation and spiritual growth. God's mercy is the foundation for the believer's assurance; He will not abandon the works He has begun in us. Since our perseverance and faith stem from His unchanging mercy, we can confidently live without fear of being forsaken, knowing our sins are dealt with by the grace of God through Christ's sacrifice. Thus, His enduring mercy becomes a central theme for believers in their journey of faith.