How do we know God's covenant of grace is trustworthy?

The trustworthiness of God's covenant of grace lies in its foundation—God Himself. Unlike the covenant of works, which requires human compliance, the covenant of grace is fulfilled entirely by Christ's work. Through His life, death, and resurrection, Christ has secured the promise of grace for His people. This assurance is reiterated throughout Scripture, emphasizing that those who believe will not be forsaken. As such, every believer can find confidence in the steadfastness of God's covenant, knowing it rests on His faithfulness rather than our performance.