"We have to mourn"

1. Mosiah 7: 23-24
   23 And now, is not this grievous to be borne? And is not this, our affliction, great? Now behold, how great reason we have to ^amourn.
   24 Yea, I say unto you, great are the reasons which we have to ^amourn; for behold how many of our brethren have been slain, and their blood has been spilt in vain, and all because of iniquity.
2. Alma 56: 10
   10 And I did join my two thousand ^asons, (for they are worthy to be called sons) to the army of Antipus, in which strength Antipus did rejoice exceedingly; for behold, his army had been reduced by the Lamanites because their forces had slain a vast number of our men, for which cause we have to mourn.