1 Thessalonians 1:9
For they themselves report concerning us the kind of reception we had among you, and how you turned to God from idols to serve a living and true God — the conversion is total and comprehensive, abandoning the cosmos of pagan religion for the exclusive service of the true God. The 'living God' (theos zōn) stands in radical contrast to dead idols; the shift is from death to life, darkness to light. This is not modification but transformation, not addition but substitution.