I thought Grace was the teaching that those who believe are saved. It is not works alone and to deny Jesus was the unforgivable sin.
That's what I've always been told. I think it was the Apostle Paul who said all things are permissible, but not all things are beneficial.
The message being (I think) that the sin itself carries its own punishment.
I don't know. What do I look like? Benny Hinn?
It's all so confusing.