Alma 16:13

And Alma and Amulek went forth preaching repentance unto the people in their tempels, and in their sanctuaries, and also in their synagogues, which was built after the manner of the Jews.

Alma and Amulek went out preaching to the people to turn from their sins. They taught in temples, in holy places, and also in synagogues that were built like the Jewish ones.

During that time, Alma and Amulek traveled everywhere, preaching repentance to the people in their temples, sanctuaries, and synagogues—which were built in the Jewish style.