How do we know God's eternal covenant is real?

God's eternal covenant is rooted in His own nature and is evidenced in His dealings with His people. In 2 Samuel 23:5, King David reflects on God's everlasting covenant, affirming its certainty and reliability. Furthermore, Ephesians 1:4-5 reassures us that believers were chosen in Christ before the foundation of the world, underscoring the eternal nature of God's promises. The consistency and fulfillment of these promises throughout history affirm that His covenant is real and dependable.