Allow me to reply in two sections:
--- About this:
I personally cannot hear God in a literal sense. Does that make me an unbelieving heretic?--You are not an unbelieveing heretic. You are in a good shape, you inherit salvation and good lahh.... but not best / maximum.
If you cannot hear God, you cannot be maximized in your callings or your live.
God still love you, only you cannot be maximized in everything.
again...again..again sorry to be rude. I hope you understand the depth of the Love that our Christ wants to reveal, by disclosing this fact. It's true.
Can you imagine a wife reading his husband facebook post without never have quality conversation for 80 years ?
The symbol / representation above is below:
The wife is church in general (or you shall i say ?)
The husband is our Jesus Christ
The facebook is the bible in printed form.
quality conversations is literally to talk / discuss / meet face to face and do more intimate things, not only reading facebook post.
80 years represent human lifespan naturally.
-- about this:
Perhaps all of us need to ask, 'should I write this'? We often say things that hurt others without thinking.---
Matthew 15:21-28 demonstrate Jesus simply does not want to serve the Canaanite woman. Jesus hurts Canaanite woman feeling. I think so; yeah so what, HE is the law anyway.
again...again..again sorry to be rude. But HE is the law... HE can do anything HE wants.... including to decline to help Canaanite woman.
I am not the law, but I have mandate to write, therefore i wrote. I know i may hurt others, I am truthfully sorry for that, but i have to write what i have to write

If you ask me to choose God's will or other people feelings, For me, God's will first, even it's not a happy writings / rebuking in nature. Does Jesus ever offend anybody. Yes... see mat 15:21-28.
i'm only commenting on Matthew 15:21-28 bcuz its very interesting.
no matter how i look at it the cananite woman was a believer. a non-jewish believer. just like us. she approached Jesus and was rejected. she kept being rejected until she humbled herself in front of Jesus, by admitting she was nothing but a dog. maybe.. this is a message to tell us to be humble to God in our prayer for salvation if we want to be saved ? maybe believing in Jesus alone is not enough.