Omniscience has to do with God's knowledge.
How does God know and what does He know?
God is infinite in all that He is which relates to His knowledge. He is infinite in His knowledge in respect to every detail that there is to be known in the whole of the created universe at all times throughout its history. He not only knows what is, but what also could be. It is quite amazing if you think of all of the twists and turns in your life and multiply that by all the people that are in the world today and in the history of the world.
God does not "know" the way we "know." We are born ignorant and learn. We gradually grow knowledge and then, the older we get, we forget much that we knew in the past. There is growth and loss in our knowledge.
But God knows all things eternally so that there is no increase in His knowledge. He does not learn, God knows.
Think of the illustration of a parade that passes through a city. You stand at a point and watch the parade pass from beginning to end. This parade is the history of the world. But image someone who is looking down from above on the whole parade. He sees, in an instant, what you see over a period of time. He also sees all of the streets that the parade could have passed down, but did not. This is a little bit like God's knowledge of all things.
Omniscience has to do with the knowledge of God. We've got the word science in the word. How does God know? What does God know? Well, God is infinite in all that He is, and that relates to his knowledge.
So God is infinite in his knowledge with respect of every detail that there is to be known in the whole of the created universe at all times throughout its history. And even more than that, not just what is, but what also could be. It's quite amazing if you think of all the twists and turns that could be in your life and my life from day to day and then you multiply that by all the people who are in the world today and in the history of the world and God knows every single little thing about them. But God doesn't know the way we know. We are born, we're ignorant, and we learn, and gradually grow in knowledge, and then, of course, the older we get, we forget much that we knew in the past.
So there's growth in our knowledge, and there's also loss to our knowledge. God knows all things eternally so that there's no increase in his knowledge. He doesn't learn, He just simply knows. So you could think of the illustration of one of these parades that passes through one of our cities. And you stand at a point and you watch the parade pass from beginning to end.
And you could call that parade the history of the world. And you see the history progress. But imagine someone who's looking down from above upon the whole parade and he sees what you see perhaps over a one hour period, he sees that in an instant altogether. He also sees all the streets that the parade could have turned off but didn't. That's a little bit like God's knowledge of all things.
By an eternal act he knows everything there is to know without learning anything or forgetting anything.