Heathen vs Gentile - What's the difference?

As adjectives the difference between heathen and gentile
is that heathen is not adhering to an abrahamic religion; pagan while gentile is non-jewish.

As nouns the difference between heathen and gentile
is that heathen is a person who does not follow an abrahamic religion; a pagan while gentile is a non-jewish person.

이교도: heathen

이방인: gentile

출처:http://wikidiff.com/gentile/heathen