How do we know God keeps His covenant promises?

God's covenant promises are rooted in His character and faithfulness. Psalm 89 highlights that God's lovingkindness will not be taken away, illustrating His commitment to keep the covenant made with David, despite the failures of His people. The assurance that God will not break or alter His covenant emphasizes that His promises are eternal and secure. This assurance is further realized through Christ, who fulfills the covenant, ensuring that God's people are eternally embraced within His grace and mercy.