In Alma 14, many women and children were killed because their husbands and fathers believed the words of Alma and Amulek and converted. They were actually thrown into a fire. Amulek was astounded at this and wanted to use the priesthood to stop them (perhaps by some miracle):
“How can we witness this awful scene? Therefore let us stretch forth our hands, and exercise the power of God which is in us, and save them from the flames.” (verse 10)
Alma said that he felt inspired not to intervene because they are automatically saved for their belief in God.
“The Spirit constraineth me that I must not stretch forth mine hand; for behold the Lord receiveth them up unto himself, in glory; and he doth suffer that they may do this thing, or that the people may do this thing unto them, according to the hardness of their hearts, that the judgments which he shall exercise upon them in his wrath may be just; and the blood of the innocent shall stand as a witness against them, yea, and cry mightily against them at the last day.” (verse 11)
The last part of verse 11 was interesting. Another reason Alma gave for not intervening is that “the Lord . . . doth suffer that . . . the people [presumable the ones doing the killing] may do this thing unto them . . . that the judgments which he shall exercise upon them in his wrath may be just”.
So he’s not going to intervene in order that God could punish (exercise judgement upon) them? If Alma and Amulek had intervened and no one was killed, God wouldn’t have needed to punish them. Wouldn’t that have been better all around?