How do we know that God will fulfill His covenant promises?

The assurance of God’s fulfillment of His promises lies in His character as faithful and immutable. In Ezekiel 36:26-27, God promises to give a new heart and spirit to His people, indicating that He initiates and completes the work necessary for our salvation and transformation. Furthermore, Scripture emphasizes that God's word stands forever (Isaiah 40:8), reinforcing the idea that His promises will inevitably come to pass. Throughout biblical history, God has consistently demonstrated His faithfulness to His people, showcasing that His covenant extends beyond time, fulfilling through the work of Christ and the ongoing sanctification in believers' lives. Thus, we rest in confidence that God will accomplish all His purposes.