Direct mention of doing this is a theme of the chapter…
Act 14:7 And there they preached the gospel.
Act 14:15 And saying, Sirs, why do ye these things? We also are men of like passions with you, and preach unto you that ye should turn from these vanities unto the living God, which made heaven, and earth, and the sea, and all things that are therein:
Act 14:21 And when they had preached the gospel to that city, and had taught many, they returned again to Lystra, and to Iconium, and Antioch,
Act 14:25 And when they had preached the word in Perga, they went down into Attalia: