How do we know that God's promises will never fail?

The assurance that God’s promises will not fail rests upon His character. God is not limited by power, wisdom, or integrity. For instance, in Jeremiah 32:27, God declares His sovereignty over all mankind and challenges us to consider if anything is too hard for Him. Throughout Scripture, there is a consistent theme that God's plans and promises stand firm because nothing can thwart His will. He has proven faithful to His people time and again, assuring us that as long as Christ lives, we cannot be barred from entering into His rest and receiving His blessings.