Dsicussing questions related to Sola Scriptura

[zemi]

Justasking,

How can you know that the Council of Nicaea (325) got it right?

It can be supported by the scriptures.

Ok, you’re in the years 325-397. To what Scriptures are you reffering to?

A follow-up question: Was the Council of Jerusalem (50 AD, Acts 15) authoritavite? If so, why? Because it was too supported by the Scriptures?! I wonder