Isaiah 48:5 I have even from the beginning declared it to thee; Before it came to pass I shewed it thee: Lest thou shouldest say, Mine idol hath done them, And my graven image, and my molten image, hath commanded them.
I love this. God told them what was going to happen before it happened so they couldn’t give credit to their idol, their false god. God knows what is going to happen. He knows yesterday what is going to happen tomorrow. God is God, all powerful, all knowing, all present, He is God. There is none other like Him. We can know that He is God because of what He can do and how powerful He is.