Omniscience and omnipresence are not words that we use in casual conversation. They are reserved, with few exceptions, to discussions related to the study of the Person of God. The reason that we infrequently use these terms is that nothing else in our world is omniscient or omnipresent. These are attributes of God alone.
Omniscience means that God knows everything that He desires to know. He has complete awareness of the past, with all of its intricacies and mystery. He knows exactly what is going on at this moment, including everything, everywhere. Finally, He has no questions about the future; He knows what will happen. Omniscience is a double-edged sword. On the one side, we can’t get by with anything. God knows. On the other hand, because He loves us, we can see that He holds our futures and has promised to help us.
God knew every doubt that you would suffer, the sin you would commit, and failure that would come in your life. Still, He chose to save you. So, we can say with accuracy that our salvation is not based upon our performance.
Likewise, omnipresent is another God-centered word. Where is God right now? He is in heaven. But there is more to it than that; God is everywhere at the same time.
Again, this attribute has two sides. On the one side, you cannot run away from Him, no matter how much you try. At the same time, we understand that He will never forsake us.
Scripture: Psalm 139:1-4; Jonah 1:1-9