Why is the immutability of God's counsel important for Christians?

For Christians, the immutability of God's counsel is a cornerstone of their faith, as it provides assurance that God's promises will not change and that salvation is secure in Christ. Hebrews 6:17-18 emphasizes that God, wishing to show the immutability of His counsel, confirms it by an oath, giving believers strong consolation in their faith. This means that regardless of circumstances or personal struggles, God's purpose for His people remains steadfast and unchangeable. Consequently, believers can find comfort and confidence in their relationship with God and His eternal promises.