Strong’s Greek
G2314 — theomachos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
θεομάχος
theomachos — pronounced theh-om'-akh-os
from 2316 and 3164; an opponent of deity:--to fight against God. see GREEK for 2316 see GREEK for 3164
1 occurrence in the KJV.
Acts 5:39
But if it be of God, ye cannot overthrow it; lest haply ye be found even to fight against God.