Acts 18:11 in the King James Version
And he continued there a year and six months, teaching the word of God among them.
Context
10 for I am with you, and no one will attack you to harm you, for I have many people in this city.”
11 He lived there a year and six months, teaching the word of God among them.
12 But when Gallio was proconsul of Achaia, the Jews with one accord rose up against Paul and brought him before the judgment seat,