There are many who will say whole heartedly that you must follow a certain theology or you cannot be saved.

Yes we should believe all Jesus taught us. We should do this in love and not become divided, esp. when it comes to words about Jesus.

When it comes to different theologies formed down through the ages.....

   Who is to say God didn't speak to each theologian (man).

That He had something to say to us all through them.

If we do not want to listen to something that a certain theologian(man) has taught. We may just be missing out on something that God wants us to know. 

We should also remember that ONLY Jesus is perfect.

So we cannot rely fully on what just 1 man tells us.

I believe and I think a few out there do too, that God speaks to many.

Ultimately it is up to us to want to know what God wants to tell us, what we want to believe in. Him, which is the best thing to believe in. 

What is to stop the God of the universe...Our Creator, King, Saviour, from inspiring anyone whom He wishes to.

Giving them the words that someone is needing to hear.....to be saved

No one should put God in a box and say He belongs here or there.

He has given us the Holy Spirit to guide us. So whenever we are in doubt about something we should ask for His guidance