“The concept of Tradition was not supposed to mean that something was to be taught that had not been written in Scripture.”
The Trinity is not defined in Scripture. That is Tradition and exposition and a lot of inspiration.
“Catholic Church of today has strayed from what their founding fathers believed.”
In what regard? That would help, first. ( -;
>>The Trinity is not defined in Scripture.<<
1 John 5:7 For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.