Do you not know?
Have you not heard?
The LORD is the everlasting God,
the Creator of the ends of the earth.
He will not grow tired or weary;
He gives power to the faint
Even youths grow tired and weary,
and young men stumble and fall.
But those who wait upon the LORD will renew their strength;
they will mount up with wings like eagles;
they will run and not grow weary,
they will walk and not faint.
[Isaiah 40:28-31] Berean Study Bible