"season 15" . "season 15's" . "fifteenth and final season" . "Galaxy Brain" . "Proverbs 17:3" . "Supernatural (season 15)" . "Despair" . . . "20" . "15th" . . . . "15" . . "final season" . "Supernatural (season 15)" . "fifteenth season" . . "Season 15" . "episode" . . "Carry On" . "Our Father, Who Aren't In Heaven" . "2019-10-10" .