God one in three...

To me God has made himself into 3 persona . Father, Son, and Holy Spirit , that together form the GODHEAD. Each persona has a different roll in a persons faith. But they all come from God and are God.

God the Father created all things. His Son came to earth with the full power of his Father to spread the word of his Fathers salvation and be the ultimate sacrifice. The Spirit is the full power of God that was given to the Disciples to heal, and spread the word The Spirit is given to followers today for comfort and help them spread the gospel.

They have all been there from the beginning....In the beginning God created the heaven and the earth. Then in Genesis we hear about the Breath of God (the Spirit) going out over the waters... And then in John we hear that Christ was there when the earth was created: In the beginning was the word, and the word became flesh.

Can he be Omniscient?... Father yes... Omnipresent?.. Jesus...Yes Omnipotent?... Spirit...Yes

I will add this from C.S Lewis...

"His Omnipotence means power to do all that is intrinsically possible, not to do the intrinsically impossible. You may attribute miracles to Him, but not nonsense. This is no limit to His power. If you choose to say 'God can give a creature free will and at the same time withhold free will from it,' you have not succeeded in saying anything about God: meaningless combinations of words do not suddenly acquire meaning simply because we prefix to them the two other words 'God can.'... It is no more possible for God than for the weakest of His creatures to carry out both of two mutually exclusive alternatives; not because His power meets an obstacle, but because nonsense remains nonsense even when we talk it about God."
– C.S. Lewis

"If the whole universe has no meaning, we should never have found out that it has no meaning: just as, if there were no light in the universe and therefore no creatures with eyes, we should never know it was dark. Dark would be without meaning."
- C.S. Lewis

"Can a mortal ask questions which God finds unanswerable? Quite easily, I should think. All nonsense questions are unanswerable."
-C. S. Lewis