4 Bible Verses about Inward Fire

And I said, I will not make mention of him, nor speak any more in his name. But he was in my heart as a burning fire and within my bones; I tried to forbear, and I could not.

And they said one to another, Did not our heart burn within us while he talked with us in the way and while he opened to us the scriptures?

I am come to cast fire into the earth; and what do I desire, except that it be kindled?

My heart was hot within me, while I was musing the fire burned; then I spoke with my tongue,