Maybe a little intellectual, but good philosophy.
Although I think it was said shorter in a couple of places like: Luke 12:23-25 (“who can add a single hour to his span of life?) or Philippians 1:21-23 or Luke 17:33 or Matt 6:11 (daily bread) or Exod 16:18-20 (the manna only lasts one day) or a whole bunch of others.
With great effort, pure reason can get us enough truth to despair or at best a stoic acceptance. What it can’t do is provide the complete picture. That requires revelation. And revelation requires faith. It is not a faith grounded in nothing – the resurrection is not nothing. But it is still faith. Faith that while we do not own our future (or our past, or even our present), there is one who does. And he has promised good to us. Are you not worth more than the grass of the field that is here today and tomorrow tossed into the fire?