Trinity. A word not found in all of scripture but the fact that God is three persons in one cannot be denied. I will not offer you an explanation of the trinity. But one thing I will do is share some scripture that sheds light on this subject.
1 John 5:7
For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.
Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man's device.
For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse:
For in him dwelleth all the fulness of the Godhead bodily.
You may count for yourself the number of times 'Godhead' is used in scripture.
Do let me explain three things though. Time is made up of what? Past, Present, Future? Space is measured be what? Length, Width, and Height? All matter exists in what forms? Solid, liquid, or gas?
In the beginning [time] God created the heaven [space] and the earth [matter].
If I may, let me quote Michael Hoggard from his book The King James Code, "Time is the essential law of the universe; nothing exists outside of the laws of time. Before there can be matter, there must be space to put it in; therefore, time, space, and matter are in their perfect order." I will leave you with one last verse.
And the four beasts had each of them six wings about him; and they were full of eyes within: and they rest not day and night, saying, Holy[once], holy[twice], holy[thrice], LORD God Almighty, which was[past], and is[present], and is to come[future]. -words in brackets mine.