After baptizing Cornelius and all his, Peter returned to Jerusalem only to be accosted by the circumcised believers: "You ate with uncircumcised men." Their miss-directed thinking didn't yet see the beauty and significance of Peter's "breach of custom."
Yet, after Peter's patient and fact-filled recounting, their skepticism turned to joy and praise: God had granted the Gentile the salvation that comes through repentance.
Luke next recounted two dramatic results of Cornelius' conversion. First, Christians began openly presenting this gospel to the non-Jewish community. Many responded. Gentiles became common in the churches. Only then was the name "Christian" applied to the disciples.
The second significant event involved benevolence. How amazing and prophecy-fulfilling was this!? Gentile churches began sending benevolent gifts to the beleagered Christians in Judea.
We'll look into each of these in our up-coming episode of Probing the Prophets.