Acts 14:1, 3-4, 7

Now it happened in Iconium that they went together to the synagogue of the Jews, and so spoke that a great multitude both of the Jews and of the Greeks believed.

Therefore they stayed there a long time, speaking boldly in the Lord, who was bearing witness to the word of His grace, granting signs and wonders to be done by their hands. But the multitude of the city was divided: part sided with the Jews, and part with the apostles.

And they were preaching the gospel there.