God promised with a covenant oath. God's promises to believers are based upon a covenant oath that cannot be broken. In ancient times, covenant vows were sealed in the death of a sacrificial animal. God's everlasting covenant is sealed in the blood of His Son (Hebrews 13:20). It's God's covenant word to you as a believer in Christ.
God promised with a covenant oath forever. Our faith in God, the forgiveness of our sins, our eternal destiny, and God's work in our lives are all guaranteed through God's covenant word. "Forever O LORD, Your word is settled in heaven" (Psalm 119:89). God's covenant promises are made with an oath forever.
God promised with a guarantee in Christ (Hebrews 7:22). His oath of covenant promises are for every believer in Christ. Jesus is your surety or guarantee to the covenant promises that cannot be broken (Hebrews 7:22). The Bible declares God's word is forever settled in heaven. That's God's covenant word to every believer.
God promised in an everlasting covenant for all who believe in Christ. Read the promises of God in the Bible, which are forever the same. God has sworn with a covenant oath, and will not repent. He will not change His mind. "God, who cannot lie, promised before time began" (Titus 1:2). God's covenant promises in Christ are Yes and Amen (2 Corinthians 1:20).