These words are the sovereign declarations of Deity, and they give us a clear picture of the infallibility and immutability of God’s word. God’s word never fails! His word is perfect, dependable and reliable!
For example, when God told Abraham He had made him the father of many nations, it didn’t seem possible to the natural mind for that word to come to pass. Abraham and his wife Sarah were already advanced in age. The bible says Sarah’s womb was dead- non functional, and so was Abraham’s body; yet that didn’t change or alter God’s word concerning them.
Abraham had faith in the infallible word of God; he made an unqualified committal of hiself to the Lord, knowing that God’s word never fails:” And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sara's womb: He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God” (Romans 4:19-20).
Abraham’s faith in the infallibility of God’s word was what earned him the titles ‘father of faith’ and ‘friend of God (james 2:23). God’s word never returns to Him void, so demonstrate faith in His word by acting on it.Whenever God speaks concerning you, it doesn’t matter what the senses project, what matters is His word. His word cannot fail.