All of us realize our human bodies need to rest. God created us to work and created us to sleep. God also created us to enjoy our lives and to enjoy our God. We need time with God just as much as we need time to sleep. It’s good to be strong physically, but it’s crucial we stay strong spiritually.

Isaiah made the point that even young people grow tired physically. Then he described the strength that only God can give. He said, “They who wait for the Lᴏʀᴅ shall renew their strength; they shall mount up with wings like eagles.” We should hear Isaiah’s words with Isaiah’s perspective. Picture the prophet as a young boy, watching an eagle soar above the earth and imagining what it would be like to do that himself. 

Christians today can sit in an airplane and arrive in a completely different country. We can travel in cars to faraway cities. We grow weary of waiting in security lines, or we hop out of our cars, weary of driving. Isaiah and the people of his day couldn’t imagine the lives we lead today. Yet we have one thing in common: every human being, of every era of history, has needed the strength of God for their circumstances in life.

Isaiah was telling the people that God could give them the strength they could never have had otherwise. He said, “They shall run and not be weary; they shall walk and not faint.” Spiritual strength is the strength only God can provide. Physically, we can train our bodies to run a marathon, but no one can run two marathons in a row without rest. That is true spiritually as well.

Every day requires water, food, exercise, and rest for our physical needs. Every day requires spiritual filling as well. Only God can renew our spiritual strength, and he does so as we spend time with him. 

Are you willing to seek the Lord’s wisdom and wait for the Lord’s spiritual strength each day? We don’t have the strength to run a marathon unless we train for it. Neither do we have the spiritual strength for tomorrow unless we wait on the Lord to provide it.

God’s strength is renewed in us when we wait for it. Waiting for God’s strength each day is wisdom, and it is also the ability to soar through our lives on wings like eagles. Flying is usually easier than driving. Driving is easier than walking. Living with God’s strength is easier when we wait for him to provide it.

Yielding to God’s wisdom is spiritual strength. Wait for it and you can find the strength to fly like an eagle through the day ahead.