And right BEFORE He tells them they need to gather (physically and literally).
Good enough for me”I tell you these things because of your prayers; wherefore, treasure up wisdom[discernment; ability to judge accurately] in your bosoms, lest the wickedness of men reveal these things unto you *by* their wickedness, in a manner which shall speak in your ears with a voice louder than that which shall shake the earth; but if ye are prepared ye shall not fear.” D&C 38:30
And because I hate it when people say you can’t know certain things about what’s really going on, as a means of dismissing their responsibility to be at least interested in finding out. At least I’m prepared for whatever.