Alma 23:14

And the Amalekites were not converted, save only one; neither was any of the Amulonites; but they did harden their hearts, and also the hearts of the Lamanites in that part of the land whithersoever they dwelt; yea, and all their villages and all their cities;

The Amalekites did not believe. Only one of them did. None of the Amulonites believed either. They made their hearts hard. They also made the hearts of the Lamanites hard in the places where they lived. This happened in all their villages and cities.

The Amalekites didn’t turn—only one did. Not a single Amulonite came around. They hardened their hearts and hardened the hearts of the Lamanites wherever they lived—in every village and city.