Sexual Sin
To tell our youth that any sexual activity is tantamount to murder and to threaten them with God’s wrath is not only dishonest: it is destructive. Our youth want to do the right things; they believe their parents and church leaders. Their spirituality—like the emotional, social, intellectual and sexual aspects of their lives—is undergoing rapid and precarious development. These are not times for unfounded exaggerations and threats of damnation.
It is credible, therefore, to infer that the “these things” he was referring to are in fact any activities that lead to others’ loss of faith. Alma would have his son and anyone within the sound of his voice understand that spiritual injury to others is comparable to physical violence.