Job 33:25 His flesh shall be fresher than a child’s; he shall return to the days of his youth.
Elihu adds a conditional promise to the “if you hear the Word of God” condition. The promise is quite amazing: you will feel young again! We hear many false promises about renewed health and youthful vitality: buy this, do that. We know it’s not true, but we get suckered in anyway, because the desire for fresh health and life never goes away. However, we can believe this promise. God is saying, “Hear my Word, listen to Me, believe the Gospel, and your youth will be renewed.”
Can that be true? Yes, the Lord said it. 2 Corinthians 4:16, “Though our outward man perish, yet the inward man is renewed day by day.” There is no doubt that the physical body is dying, perishing, deteriorating, and getting weaker. And there also should be no doubt that the spiritual soul of a Christian is becoming more alive, growing stronger, and is being renewed every day we live. We do so by looking at the things that are unseen for they are eternal. See also Isaiah 40:31, “They that wait upon the Lord shall renew their strength…mount up…run…walk.” Waiting on the Lord means looking to God, listening to Him, praying, and trusting in Him.
We may not feel youthful and strong all the time, but the Word says we are youthful and getting stronger. The physical body says one thing; the spiritual soul says another. Which will you believe? God’s word and promise, which is fresh and new? Or your dying human body, which is old and decaying?