How do we know God's mercy is never-ending?

The assurance of God's never-ending mercy is woven throughout Scripture. In Psalm 77, the psalmist wrestles with doubt and questions whether God will cast him off forever. However, God's character, as portrayed in the Bible, is one of unfailing compassion and mercy. Passages such as Ezekiel 36:26-27 affirm that God delights in showing mercy and will not withhold it from those He has redeemed. This is further emphasized in Romans 8:38-39, where Paul asserts that nothing can separate us from the love of God in Christ Jesus, reinforcing the idea that God's mercy endures beyond our circumstances and doubts.