2 Kings 14:29

And Jeroboam slept with his fathers, &c. It was in the reign of this Jeroboam, that Hosea (who continued very long a prophet) began to prophesy, and he was the first that wrote his prophecies. At the same time Amos prophesied, and wrote his prophecy, and soon after Micah, and then Isaiah, in the days of Ahaz and Hezekiah. Thus God never left himself without witness: but, in the darkest ages of the church, raised up some to be burning and shining lights to their own age by their preaching and living; and a few by their writings to reflect light upon us, on whom the ends of the world are come.