You've been shown examples from the Word which explains the Trinity.
The Father, Son and Holy Ghost have always existed. There is no origin point.
You're starting to sound more JW than catholic.
John 1:1
New International Version ... In the beginning was the Word, and the Word was with God, and the Word was God.New Living Translation ... In the beginning the Word already existed. The Word was with God, and the Word was God.
English Standard Version ... In the beginning was the Word, and the Word was with God, and the Word was God.
Berean Study Bible ... In the beginning was the Word, and the Word was with God, and the Word was God.
Berean Literal Bible ... In the beginning was the Word, and the Word was with God, and the Word was God.
New American Standard Bible ... In the beginning was the Word, and the Word was with God, and the Word was God.
King James Bible ... In the beginning was the Word, and the Word was with God, and the Word was God.
Even before there was time or space, The Word IS I AM
Douay-Rheims Bible ... IN the beginning was the Word, and the Word was with God, and the Word was God.
As Time came into existence (the beginning is a temporal expression of first temporal) The Word already was God, The Holy Spirit already was God.