4 Bible Verses about Inward Fire

And I said, 'I do not mention Him, Nor do I speak any more in His name,' And it hath been in my heart As a burning fire shut up in my bones, And I have been weary of containing, And I am not able.

And they said one to another, 'Was not our heart burning within us, as he was speaking to us in the way, and as he was opening up to us the Writings?'

'Fire I came to cast to the earth, and what will I if already it was kindled?

Hot is my heart within me, In my meditating doth the fire burn, I have spoken with my tongue.