This passage almost wasn't covered, but it's the verse from which all the other "ONE THING's" flow out of. If we keep our eyes upon THIS principle, we will have no problem achieving the others. If someone's final words were telling you not to not be ignorant of ONE THING, you'd do well to perk up your listening.

https://fbcjsolidyouth.wordpress.com/2023/08/28/be-not-ignorant-of-this-one-thing/