How do we know God's promises are unchanging?

The immutability of God assures us that His promises are unchanging, as stated in Malachi 3:6, 'For I the Lord do not change.' This attribute provides a fortissimo consolation to believers, particularly highlighted in Hebrews 6:18, where it emphasizes that it is impossible for God to lie. His promises are established through His unbreakable oath, ensuring that His declarations regarding salvation and His people are secure. The assurance found in these promises allows believers to rest confidently in the hope provided through Jesus Christ, who is the fulfillment of God’s ultimate promise.