Alma must remonstrate his son. As with most fathers who love their sons, this is not a task that Alma relishes. He would much rather praise his sons, as he has done with Helaman and Shiblon. Nevertheless, he must because the Lord has commanded him to do so. Notice that the Lord’s commandment is generic, not specific. Even though Alma has only had one son who has led people away through his actions, all of his sons might do so. The command is for all, but the necessity of the command at this time is for Corianton.