Exert themselves

1. Mosiah 20: 11
     11 And it came to pass that the people of Limhi began to drive the Lamanites before them; yet they were not half so numerous as the Lamanites. But they ^afought for their lives, and for their ^bwives, and for their children; therefore they exerted themselves and like dragons did they fight.
2. 3 Ne. 3: 16
     16 And so great and marvelous were the words and prophecies of Lachoneus that they did cause fear to come upon all the people; and they did exert themselves in their might to do according to the words of Lachoneus.