WHY can the Author of the Bible, Jehovah God, accurately predict the future while man cannot? For two reasons. Jehovah is omnipotent.

Being almighty​—omnipotent—​Jehovah used his power to overcome any obstacle that could block fulfillment of his promise to Abraham, enabling that patriarch to become the father of Isaac.

God’s omnipotence and omniscience make it impossible for him to fail. He always predicts the future accurately. Hence, he could say: “Surely just as I have figured, so it must occur; and just as I have counseled, that is what will come true.” (Isaiah 14:24)