The commercial for 5 Hour Energy says they sell 2.5 million of them each day. I guess the odds are pretty good that you’ll encounter someone wired on that stuff today or any day.
What do you do to renew your strength? Take a nap (one of my favorites)? Take a walk? Get a snack? The gist of Isaiah is that trusting God will renew your strength. Everyone gets weary, even exhausted — except for God that is.
BTW, they also have an extra strength version of their product in case regular just doesn’t do it for you.