Guess you never read the WORD or you would know that the answer is in it and you don’t need any Catholic writer or creed to spell it out for you .
1Jn 5:7 For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.
Joh 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.
Joh 1:2 The same was in the beginning with God.
Joh 1:3 All things were made by him; and without him was not any thing made that was made.
Joh_3:16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
Joh_3:18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
Oh and Jesus himself tells us the three are one when he recites the Shema
Want me to go into the Old Testament to find more proof for you ? It’s there too
You kid yourself if you think the Holy Spirit needs the Roman Catholic church to teach a believer .
They claim we can't find the Trinity in the Bible...Have to really wonder where they found the Trinity outside of the scriptures...Perhaps they will tell us...