4 Bible Verses about Inward Fire

And I said, I will not make mention of him, nor speak any more in his name: but it was in my heart as a burning fire shut up in my bones; and I became wearied with holding in, and I could not.

And they said to one another, Was not our heart burning in us as he spoke to us on the way, and as he opened the scriptures to us?

I have come to cast a fire on the earth; and what will I if already it has been kindled?

My heart burned within me; the fire was kindled in my musing: I spoke with my tongue,