em·py·re·an (em – PEA – ree – än)
a. The highest reaches of heaven, believed by the ancients to be a realm of pure fire or light.
b. The abode of God and the angels; paradise.
2. The sky.
Of or relating to the empyrean of ancient belief.
[From Medieval Latin empyreum, from empyreus, empyreal; see empyreal.]
“…Thou wast upon the holy mountain of God; thou hast walked up and down in the midst of the stones of fire…” (Ezekiel 28:14).
“And the sight of the glory of the Lord was like devouring fire on the top of the mount in the eyes of the children of Israel” (Exodus 24:17).
Yes, heaven is on fire.