The Divine decree is the necessary condition of the Divine foreknowledge. If God does not first decide what shall come to pass, he cannot know what will come to pass. An event must be made certain, before it can be known as a certain event. In order that a man may foreknow an act of his own will, he must first have decided to perform it.So long as he is undecided about a particular volition, he cannot foreknow this volition. Unless God had determined to create a world, he could not know that there would be one. For the world cannot create itself, and there is but one being who can create it. If therefore this being has not decided to create a world, there is no certainty that a world will come into existence ; and if there is no certainty of a world, there can be no certain foreknowledge of a world. So long as anything remains undecreed, it is contingent and fortuitous. It may or may not happen. In this state of things, there cannot be knowledge of any kind. If a man had the power to cause an eclipse of the sun, and had decided to do this, he could then foreknow that the event would occur. But if he lacks the power, or if having the power, he has not formed the purpose, he can have no knowledge of any kind respecting the imagined event. He has neither knowledge nor foreknowledge, because there is nothing to be known. Blank ignorance is the mental condition.
Shedd
christianity, theology