Please provide one Scriptural example where different Churches, having disparate doctrines, are considered equally orthodox.
Thank you for asking. You raise a very different question than the one this thread concerns. Why?
Your question puts forth a hidden assumption which must be revealed.
It presumes the existence of a "church."
Scripture records Christ as teaching His future gathering.
There is only one standard in Scripture of who are the saved - entrusting oneself to Christ alone and His payment on the cross.
Every gathering is made up of wheat and tares, according to Scripture. Christ will sort it out at the end of days.
Only those who have entrusted themselves to Him alone and His payment are to be saved.
Now, if you will be so kind to answer any of the more than 10 questions from Daniel1212, that would be back on track.
Here is an example where your early Catholic teaching was so grossly in ERROR that an ANGEL had to send a message!!
Revelation chapters 1-3