We explore Hebrews 6:13-20, emphasizing the eternal security of salvation through God's unchangeable promise and oath to Abraham. Pastor Chad addresses the controversial doctrine of perseverance of the saints, arguing that genuine salvation cannot be lost because it depends entirely on God's faithfulness, not human effort. Using Abraham's example and the fulfillment of God's promise through Christ, the message demonstrates that believers are heirs of an ancient promise that God guaranteed with an oath sworn by Himself.