How do we know that God gives strength to the weary?

Isaiah 40:29-31 offers a profound promise for those who find themselves weary and in need of strength. The prophet declares that God provides power to the faint and strength to those who have none left. This encourages believers that even in our weakest moments, we can trust in God's provision to rejuvenate us. This renewal of strength is intrinsically tied to waiting upon the Lord—actively trusting in His promises and relying on His grace. As believers, when we feel weak, we should look to God for help, as He equips us to endure the trials we face. This is echoed in the New Testament as well, where Paul writes about God's grace being sufficient for him in his weaknesses (2 Corinthians 12:9). Thus, in reliance on God, we find the strength to continue our race of faith.