Now this was wisdom in

1. Alma 22: 34
     34 Therefore the Lamanites could have no more possessions only in the land of Nephi, and the wilderness round about. Now this was wisdom in the Nephites—as the Lamanites were an enemy to them, they would not suffer their afflictions on every hand, and also that they might have a country whither they might flee, according to their desires.
2. Alma 49: 15
     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.