The mystery is also meant to be a sacred secret.
The gospel of Matthew, Mark, and Luke, who wrote about the life and death of Jesus, identified Jesus in this order: as the King, Servant, and a Man who is flesh aside from John, who wrote that Jesus is God or could also be a misinterpretation of those early church fathers that claimed that the word in John 1 is Jesus and being human, is flesh.
Many commented that the author manipulates the whole chapter 2 of the gospel of John. If Jesus is a prophet, a healer, or a messenger of God, then worshiping Jesus would not be appropriate. Remember that The LORD is a jealous God and will not give His glory to another. He is the “I AM” and the only God and no one else besides Him, which is His word. John 17:3 KJV: And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent. John 17:3 NIV: Now this is eternal life: that they know you, the only true God, and Jesus Christ, whom you have sent.
Jews, Christians, and Muslims are all monotheists. Believes that there is only one God. We believe in the only true God—our Creator, Father, Savior, Comforter, Teacher, and Guide. He is our all in all. Believers of the gospel of Jesus Christ believe in the Father that he preached. He is the Almighty God (Deuteronomy 6:4) NIV. Jesus said: My Father is greater than I (John 14:28), the only true God (17:3).
The Bible tells us that the members of the Godhead are three persons in one: God the Father, the Son, and the Holy Spirit. To this day, the Trinity is a sacred secret whose interpretation cannot be just an opinion but through revelation and confirmation. Sacred Secret is the synonymous word for Mystery; God revealed to Adam and Eve His purpose to populate the Earth but have to control it. Likewise, Father God revealed to Jesus things to come (Revelation 1:1), and Paul received personal revelation from Jesus Christ (Galatians 1:11-12).
The natural mind cannot just process a mystery by imagination but must be received by faith (1 John 5:7). We worship one God manifested by the Holy Spirit as Father(first person singular), Son(second person singular), and Holy Spirit as the third person (plural). We are all united as one Spirit but distinct from each other (relating to a separate person).
God is a Spirit that gives life, and Humans had the Spirit of God before disobedience occurred in the Garden of Eden. Adam received the breath of life (Spirit), and disobedience turned the Spirit (perfect) into a spirit (imperfect and sinful) and lost living in perfection. And humankind becomes the perfect imperfection of God’s creation. Note the small s in spirit. Still, it gives us something to feel very happy about because it involves many persons or people. Are we part of it? Can we be a part of it? Only God knows!