Do you not know? Have you not heard? The Everlasting God, the LORD, the Creator of the ends of the earth does not become weary or tired. His understanding is inscrutable. He gives strength to the weary, and to him who lacks might He increases power.
Though youths grow weary and tired, and vigorous young men stumble badly, yet those who wait for the LORD will gain new strength; they will mount up with wings like eagles, they will run and not get tired, they will walk and not become weary.
If you are exhausted, turn to God!
God is not like some pill you pop into your mouth to pep you up; He is not like a spiritual energy drink that will keep you awake as you drive. This passage is clearly not inviting you to use God for energy as you live a self-centered life.
No, God is “the Creator of the ends of the earth”! He is to be the centre, the defining force, of your life. But as the Creator of all things, He has unlimited strength. As you bring your life under His leadership, and as you learn to “wait for the Lord”, He will infuse your inner life with His strength. He will enable you to do what He calls you to do.
When you come to that conviction in your life, a huge weight lifts from your shoulders. Find out for yourself!