Neither the word “Trinity” nor the explicit doctrine appears in the New Testament, nor did Jesus and his followers intend to contradict the Shema in the Hebrew Scriptures: “Hear, O Israel: The Lord our God is one” (Deuteronomy 6:4)
In the Gospels when Jesus said he would be "lifted up" like Moses lifted up the bronze serpent for the people to turn to for healing during the time of testing in the wilderness Jesus was warning that he would present a test and would become the object of idolatry just like the bronze serpent.
Hezekiah was credited with keeping Gods commands and doing what was right in Gods eyes by destroying the statue Moses made. Here is the thing. If it was right to destroy the bronze serpent then it was never right to turn to it for healing. So if you ever want to get out of the hell you are in for failing "the test" all you have to do is ask yourself, "What would Hezekiah do?" and then do it.
Its easy.
Godhead......consisting of 3 distinct persons is mentioned by the Apostles of Christ. And the concept of the God is addressed 5 times in the Old Testament (Genesis 6:2, 4 Job 1:6, 2:1, 38:7)..............and several times in the New Testament (Matthew 5:9, Luke 20:36, Romans 8:14, 19, Gal.3:26) Some might argue that GOD HEAD in the OLD TESTAMENT is different because the term refers to Sons of God (those that follow God).........exactly as Jesus explains the concept of Godhead and its parts while He was in His physical form on earth in the New Testament.
"Just as each of us have one body with many members, and these members do not all have the same function, so in Christ we are man form one body, and each member belongs to all others." -- Romans 12:4. The Apostle added, "The body is a unit, through it is made up of many parts, they form one body; SO IT IS WITH CHRIST." -- 1 Cor. 12:12
Jesus also taught that two persons can become 1 without giving up their individual identity..........marriage creates 1 from 2.......2 or more people make ONE FAMILY. (Matthew 19:5-6) The Godhead is a family of deity, and all 3 are mentioned in being in one place at one time........the Father Spoke from Heaven, The Holy Ghost appeared as a Dove, When Jesus the Son of God////aka the Son of Man was baptized by John the baptist when He came up out of the water empowered with power from Heaven. (Matt. 3:13-17)
Jesus explains the GODHEAD.......aka, the trinity. "My prayer is not for them alone. I pray also for those who believe in Me through their message, that all of them may be one, FARTHER , just as YOU ARE IN ME and I AM IN YOU..........." -- John 17:20-22
The Godhead is found in (Acts 17:29).....also, "For in Him (Jesus) dwells the fullness of the Godhead bodily......" -- Col. 2:9
Jesus believed in the Godhead and declares in order to enter the kingdom of God...i.e, the church of Christ (Matthew 16, Acts 2) you must be baptized in the Name of the Father, The Son and the Holy Ghost, as we (Christians) are to follow all His commandments (Matt. 28:18-20). Jesus was with God in the Beginning and WAS GOD (John 1) All things are created through Jesus Christ.......all things in heaven and on earth, visible and invisible (spirit and physical).......AND HE IS BEFORE ALL THINGS (Col. 1:16-17)
The fact there are more than 1 being making up the Godhead is demonstrated in Genesis, "And the Lord God said; BEHOLD! The man is become as ONE OF "US"....(God) -- Genesis 3:22