I

Jehovah said, "Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him." The words of God are certain. God does not say such words because of, or in representation of, His confidence in success; they are, instead, proof of the authority of God's utterances, and are a commandment that fulfills the words of God. The more certain the words of God, the more that they prove that God has such authority, that His authority can accomplish these things, and that their accomplishment is inevitable.

II

God was certain in His heart, without the slightest hesitation, of all that He blessed Abraham with. Furthermore, the entirety of this would be accomplished in accordance with His words, and no force would be able to alter, obstruct, impair, or disturb its fulfillment. Regardless of what else happened, nothing could abrogate or influence the fulfillment and accomplishment of God's words. This is the very might of the words uttered from the mouth of the Creator, and the authority of the Creator that does not brook the denial of man!

III

There is power, majesty, and authority in the words of God. Such might and authority, and the inevitability of the accomplishment of fact, are unattainable by any created or non-created being, and unsurpassable by any created or non-created being. Only the Creator can converse with mankind with such a tone and intonation, and facts have proven that His promises are not empty words, or idle boasts, but are the expression of unique authority that's unsurpassable by any person, event, or thing.

from The Word, Vol. 2. On Knowing God. God Himself, the Unique I