Per Ger, what city is called "the mother of Gentile Christianity"?

Antioch church

Explanation:

Antioch church is called "the mother of Gentile Christianity" . This city is found in Greece and was very instrumental in the propagation of the gospel of Jesus Christ ( Christianity) to the Gentiles. The Gentiles were known as non-Jews and Jesus being a Jew had large Jew followers.

The establishment of the Antioch church was pivotal in spreading of the gospel to the Roman Empire and other neighboring cities/countries of the world through the disciples.

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