King James Bible
"And it came to pass in Iconium, that they went both together into the synagogue of the Jews, and so spake, that a great multitude both of the Jews and also of the Greeks believed."
Paul and Barnabas continue their missionary pattern of visiting synagogues first, where both Jews and God-fearing Gentiles gathered. Iconium was a prosperous city in Asia Minor where they arrived after fleeing persecution in Pisidian Antioch. This phrase emphasizes the manner and effectiveness of their preaching—they spoke with such clarity, conviction, and power that their message proved compelling. The Greek implies they reasoned persuasively from the Scriptures. Their preaching yielded remarkable results across ethnic boundaries, fulfilling the gospel's universal scope. The inclusion of Greeks (Gentiles) alongside Jews demonstrates the breaking down of religious barriers that characterized the early church's expansion.