Captain Moroni fortified the Nephites’ weakest cities first.
14 But behold, to their astonishment, the city of Noah, which had hitherto been a weak place, had now, by the means of Moroni, become strong, yea, even to exceed the strength of the city Ammonihah.
15 And now, behold, this was wisdom in Moroni; for he had supposed that they would be frightened at the city Ammonihah; and as the city of Noah had hitherto been the weakest part of the land, therefore they would march thither to battle; and thus it was according to his desires.
Elder Robert D. Hales wrote:
“We are all vulnerable. We all have a proverbial Achilles’ heel, and the adversary knows what it is. He also knows the Achilles’ heels of our loved ones, our friends, our roommates, our brothers and sisters, and our parents. He tries to use all of our weaknesses to his own advantage.
“Do we know what our Achilles’ heel is and what we have to protect ourselves from? Do we know what our weaknesses are and the situations we must avoid? Captain Moroni wisely shored up his weakest cities first (see Alma 49:14–15). We, too, can better defend ourselves against the adversary when we recognize our greatest weaknesses and shore ourselves up where we are most vulnerable.”
(Return: Four Phases of Our Mortal Journey Home .)