The secret of the divine purpose is in Christ, and it is an ‘open secret’ accessible to all believers. It is and remains a mystery in the sense that no human intelligence could have guessed what God planned to do; but it is now revealed to Paul and his group (see 3:3–6). Its content is that Gentiles as well as Jews are united in a common hope and blessedness, with all racial barriers broken down (2:11–22) and all specious claims to exclusivity exposed. — Ralph P Martin, Ephesians, Colossians, Philemon, Interpretation Commentary
Do our churches embody the reconciliation and unity of often hostile groups—Caucasian and African American, Christian and Muslim, heterosexually identified and LGBTQ persons, the one percent and the working poor? Do they manifest the wisdom of God in its rich variety?… — Stephen B Boyd, Connections: Year A Vol.1, Advent through Epiphany
What was the biggest struggle of the early Christian church? What was the thing that divided one group of Christians from another?
Hint: it’s something we all take for granted today. Another hint: we heard it in our Ephesians reading.
In former generations this mystery was not made known to humankind, as it has now been revealed to his holy apostles and prophets by the Spirit: that is, the Gentiles have become fellow heirs, members of the same body, and sharers in the promise in Christ Jesus through the gospel.
The biggest struggle was this: most of the first leaders of the church, like those in the mother church in Jerusalem, taught that Gentiles should become Jews in order to follow Jesus. They should be circumcised and stop eating prawn cocktails and bacon sandwiches. The way to Christ was strictly through the covenant God had made with Israel. The Apostle Paul on the other hand taught differently. Paul taught that the covenant God had made with the Jewish people had become an open covenant in Christ. It was a new covenant, available to all who received it in faith. Gentiles were welcome as Gentiles. And this was really controversial.
There’s no problem now, of course. As far as I know, I’m 100% Gentile. And I suppose many of you are. We don’t think at all about having to become a Jew if we’re going to be a Christian.
Paul’s way, ‘his gospel’, encountered lots of opposition. But he won through and the church became a mixed body of Jews and Gentiles. Paul’s Gospel won so completely we’ve forgotten it wasn’t always this way.