"For all the promises of God in Him [Christ] are Yes, and in Him Amen, to the glory of God through us." (2 Cor. 1:20)
"God is not a man, that He should lie, nor a son of man, that He should repent. Has He said, and will He not do?
Or has He spoken, and will He not make it good?" (Num. 23:19)
"Behold, this day I am going the way of all the earth. And you know in all your hearts and in all your souls that not one thing has failed of all the good things which the LORD your God spoke concerning you. All have come to pass for you; not one word of them has failed." (Joshua 23:14)