How can we be assured of the promises made in the gospel?

The assurance of the promises made in the gospel is rooted in the faithfulness of God and His covenant fidelity. As stated in Isaiah 55:3, when the Lord promises an everlasting covenant with His people, it highlights God's unchanging nature and commitment. For believers, this assurance is further confirmed through the blessings experienced in their lives, as the Holy Spirit testifies to their hearts of the reality of God's promises. Just like the story of Mephibosheth, who was invited to dine at the king's table based on a covenant made before his birth, Christians can trust the covenant assurances made through Jesus Christ, sealed by His blood. The nurturing of one's soul through grace, mercy, and spiritual provision accrues to the believer as they abide in Christ, demonstrating the validity of the covenant promise. This relational dynamic fosters a growing confidence in the faithful God who has appointed the believer as a recipient of His eternal grace.