2But the Jews who refused to believe stirred up the Gentiles and poisoned their minds against the brothers.
3So Paul and Barnabas spent considerable time there, speaking boldly for the Lord, who confirmed the message of his grace by enabling them to do miraculous signs and wonders.
4The people of the city were divided; some sided with the Jews, others with the apostles.
5There was a plot afoot among the Gentiles and Jews, together with their leaders, to mistreat them and stone them.
6But they found out about it and fled to the Lycaonian cities of Lystra and Derbe and to the surrounding country,
7where they continued to preach the good news.
P & B speak boldly for the Lord
We may wish we could perform a miraculous act so that we could convince others once and for all that Jesus is the Lord. But as we can see here that even if we could, it wouldn't convince everyone. God gave P & B the power to do great wonders as confirmation of the message of grace, but people were still divided.
It is best to simply plant seeds where you have the opportunity and allow God to do the rest.