First one for sure
im guessing third one too
plz wait for another person to answer the rest but im pretty sure its only those two
hope this helps
I believe you are referring to the book of John in the bible
the book of john cautions against syncretism of christian religion and the holding of doctrines that are heretical.
syncretism is the mixing of various views into a culture or religion, that was spreading quickly in the early church.
Why is it ? Maybe I can help