How do we know God's promises are sure?

In Psalm 93:5, the certainty of God's testimonies provides the foundation for our hope. The Bible reveals that God, who cannot lie, makes promises that are true and guaranteed. His promises are based on His character, which is immutable and steadfast. Furthermore, the assurance we find in God's testimonies is rooted in His past faithfulness, which reassures believers that He will fulfill what He has promised, particularly regarding salvation and eternal life to those who believe in Jesus Christ. Therefore, we can anchor our faith in His sure promises amidst the uncertainties of life.