I do not agree with you.
The Trinity is all through the Bible IF you want to see it my friend.
The flour to the bread of Christianity, cannot be understood through human reason. The mysteriousness of the Trinity, however, hasn’t stopped believers from spending centuries examining and clarifying its doctrine. The core elements of the Trinity are described in no uncertain terms:
God is only one, but exists in three distinct persons. The divine persons do not share one divinity but are each wholly and entirely God, existing in relationship with one another.
Jesus refers to God as Father, telling his followers in John 10:30 that.......
“I and the Father are one”.
At the Last Supper, Jesus tells the apostles that though he is leaving them his Father will send the Holy Spirit to teach and guide them. It is largely through Jesus, therefore, that we have come to know the three persons of the Trinity as the Father, the Son, and the Holy Spirit.