“He gives strength to the weary and strengthens the powerless. Youths may faint and grow weary, and young men stumble and fall, but those who trust in the Lord will renew their strength; they will soar on wings like eagles; they will run and not grow weary; they will walk and not faint.” (Isaiah 40:29-31 CSB)
Through Isaiah the Lord gave words of comfort and hope for the coming of One who would provide us a true source of strength. Weakness, powerless, and weariness are not necessarily the afflictions of old age. Physically that may be true at least much of the time, but this prophecy has more to do with those who experience spiritual weakness, powerlessness against Satan and his cohorts, and weariness from trying to remain faithful to the Lord in the face of intense social and cultural pressures to conform. That can afflict anyone regardless of age. It can be devastating, but against this comes the word of the Lord that God provides the strength we need and will send One who will provide a way for us to soar on wings like eagles and run and not grow weary.
Jesus came to this earth, God incarnate. He came as Messiah, to bring the comfort that comes with strength. He provided this source through His cross, sealed it with His resurrection, and sealed our salvation with the sending of His Spirit, who now dwells in us enabling us to deal effectively with weakness, powerlessness, and weariness. The Spirit of God in us is now our source of true strength. Now, we can soar.
Lord, You are the Author of strength and power, and in You we find our true Source of strength. You enable us to soar spiritually and run with endurance the race that is set before us. Thank You. Amen.