Where is this explicitly taught in the Holy Scriptures?
There is one God, there are three individual entities in that one God. Each entity is consciously aware and functions individually within that one
Understood. This concept comes from the Hebrew and Greek words translated as Spirit in English. These words Ruach in Hebrew and Pneuma in Greek can be translated as Wind or Breath.
That would mean God is not omnipresent. Even trinity believers believe God is a single being but with 3 distinct(not separate) persons.
Jesus in the flesh did not know. But as a trinitarian do you really think that God does not know something? you can't limit God. So I believe that Jesus does know as God. But limited His knowledge in human form.
After the resurrection Jesus said all power was given to Him. That in my opinion would include all knowledge. When the disciples repeated their inquiries about the time of His return in Acts chapter 1, it should be noted that Jesus no longer says He does not know. But simply tells them it's not for them to know ...
Jesus in the flesh is the express image of God. It's not the unveiled God. Jesus called His body the temple of God. The flesh is created (Hebrews 10:5). The fullness of the Divine nature was indwelling Him bodily. (Colossians 2:8-9)
many problems however disappear when you consider the "hypostatic union" which is just the idea that Jesus was fully human and yet fully God in one. Basically it deals with the duality of Christ's nature. Trinitarians also believe in the same thing.
Yes, we do. Yet we believe in the plurality of God.
A simple crude example of how I view this plurality.
My last name is Smith, so is my fathers last name and my son. We are all a Smith.
But my Fathers first name is Tom, mine Dick, and my sons Harry
We are all a Smith, we are all separate and distinct. We are all genetically linked where ever we go, no matter how separated we are by time or space.
God's plurality is not linked by genes, and since we are not privy to the total nature and essence of God, we can only speculate, It is clear that the three separate entities that are one God are connected so closely as to be one.
For illustration, I have used the term 3 points of consciousness in one being, totally alien to us, and since humans always want to use their reason to define everything, unacceptable to many.
These three points of consciousness can be separated, yet are connected and one.
To me, God is omnipresent in that the Father sees and knows everything that occurs, The Spirit can literally be anywhere or every as required by the Father, and the Son, is the intercessor on mans behalf with the Father. They are all God, with three distinct responsibilities.
Here are some verses you might one to look at that show the plurality of God, in the OT
Gen. 3: 22, Gen. 1:16, Gen. 11:7, Isa. 6:8 ,m Isa 6:8 Isa 48: 16-17, Ps. 45:6-7, Ps. 2: 6-7
You are no doubt familiar with the many NT scriptures where Jesus is asserted to be God. You and I will disagree as to what they mean exactly, but we do agree they clearly indicate that Jesus was and is God.