[what's up]

It should be noted that the Sacred Tradition sustained the Church throughout the period from the first Pentecost until the Canon was set. It was this Tradition, as expressed in the Creeds, that served as the standard

As I stated, the NT writings were in existence and considered authoritative in the first centuries because they were written by the Apostles or those close to them. The early fathers did not consider themselves or their traditions above the Apostles' writings.

[Natural Law]

"As I stated, the NT writings were in existence and considered authoritative in the first centuries because they were written by the Apostles or those close to them."

Considered authoritative by who and how were the very real disagreements resolved?