How do we know that the covenant of grace is true?

The covenant of grace is central to the biblical narrative and is affirmed through God's immutable promises. Hebrews 13:20 highlights the blood of the everlasting covenant provided by Christ, serving as the foundation for our hope and assurance. This covenant is not just a notion but a divine arrangement established by God Himself, ensuring that His people are called, justified, and ultimately glorified. The certainty of the covenant is further reinforced by the testimony of scripture, where God pledges His commitment to His people, ensuring that He will never turn away from doing them good.