Archibald Alexander:

If any man can bring himself, after an impartial examination of the Scriptures, to believe that they were written by unprincipled impostors, then he may believe that an untutored savage might construct a naval warship; that a child might have written the “Iliad” or “Paradise Lost;” or even that the starry sky was the work of mere creatures. No, it cannot be that this is a forgery. No man or set of men ever had sufficient talents and knowledge to forge such a book as the Bible.

It evidently transcends all human effort.

It has upon its face the impress of divinity.

It shines with a light, which by its clearness and its splendor shows itself to be heavenly.

It possesses the energy and penetrating influence which bespeak the omnipotence and omniscience of its author.

It has the effect of enlightening, elevating, purifying, directing, and comforting all those who cordially receive it.

Surely then it is the Word of God, and we hold it fast as the best blessing which God has vouchsafed to man. (From Evidences).