Trinity means functioning simultaneously in three different modes.
God uses three-in-one design extensively throughout his creation. For example: Space is one nature, but a trinity (height, width and depth). Matter is one nature, but a trinity (solid, liquid and gas).
Animals have bodies and souls (just kick a dog to test!) But among all earth’s creatures, only man has the spirit part and is thus is the only trinity in the image of God.
Therefore, because we resemble God, and God resembles us, we get important insight into both natures, how they coincide, and how they work together.
For centuries, God has been referred to as the three persons of the trinity in Christian theology. That’s confusing because, in ordinary usage, the word person now means something very different than in times past. Today the word has come to mean a self-conscious autonomous individual, but originally it meant patterns and qualities of behavior. (From original Hebrew, persons is often translated 'faces.')
In the Old Testament, the word for God is Jehovah, but Jews referred to Jehovah with different names, depending upon focus, as Jehovah-jireh (the God who provides), Jehovah-rope (the God who heals), and Jehovah-shalom (the God of peace),
The word 'trinity' is not in the Bible. The concept is inferred, not directly stated. The word was not used in Christian writings until the fourth century.
Trinity in the Bible is not individual persons but functional behaviors. In mathematical expression, it’s 1x1x1=1, not 1+1+1=3.
God-the-father is the supreme God of the universe, generally recognized and acknowledged by people everywhere.
He is the designer-creator and established the physical and spiritual laws by which we live and die.
He is not a body or a gender. He is all-powerful, all-knowing and everywhere present.
Nearly everyone throughout history has known he's out there, but without the Son and Holy Spirit, he would be only a remote power, and no one could really know or understand him.
It is difficult for anyone to relate personally to the formless intelligence and power that created the universe.
As an analogy, suppose you want to communicate to a colony of ants. You could shout, gesture and drop notes, but all to no avail. The only way is for you to become an ant and go down among them.
Similarly, God had to become a man and come down among us.
He could have continued sending prophets, as he did in the Old Testament, but people would not be able to distinguish between who is real and who is fraudulent or misguided. Many would claim to be prophets, and most people would not believe them, and we would be left in in the dark.
So, for a brief time, the Son came into our world as a man, born of the Virgin Mary. He was human body with divine soul and spirit. Jesus is his name (like James or Robert). Christ is his title (Christos in Greek, meaning the one sent by God).
He authenticated his deity with miracles and eye witnesses. He told us everything we need to know about God.
Then, he offered his own body as the once-and-for-all sacrifice for sin, putting an end to the old sacrificial system of finding favor with God.
Because Jesus had a human body, he was limited to one place at a time. Even though he came into the highly developed Greco-Roman culture, most people still could not read or write, and there were no printing presses, no radio or television, no cars or planes. He couldn’t physically be with everyone, then or now. So he sent the Holy Spirit to guide and direct us.
Just as a part of God came into the world, a part of God can come into every person, individually, if invited. His spirit in our spirit.
Now it’s more than God among us; it’s God in us!
The Greek word for spirit literally means wind or breath. A Christian can have the breath of God within him.
The Holy Spirit draws us to God and gives us inner guidance and strength for daily living.