Isaiah 40:29
"He gives power to the faint; and to them that have no might He increases strength."
When we are engaged in service for the Lord, we do not need to be concerned about having the strength to complete whatever assignment He gives us. The completion of His work is not dependent upon what we have; His strength assures that all that He wills gets accomplished. His only requirement is for us to be willing vessels surrendered to His purposes. Yes, we may get tired. Yes, we may feel faint along the way, but we should not consider our condition the point of focus. We do not base our decision to move forward in obedience to God's will on how we feel; we move forward in faith, trusting in His Word.
The apostle Paul expressed it this way:
"And He said unto me, My grace is sufficient for you: for my strength is made perfect in weakness. Most gladly, therefore, will I rather boast in my weaknesses, that the power of Christ may rest upon me. Therefore I take pleasure in weaknesses, in reproaches, in necessities, in persecutions, in distresses for Christ's sake: for when I am weak, then am I strong." 2 Corinthians 12:9-10
The enemy's strategies backfire when the child of God takes this position. Instead of being distressed about our condition, we turn to the One in charge of our lives and receive strength from Him. In the presence of weakness, we receive strength from the Lord. We can, like Paul, take pleasure in the very thing designed by the enemy to discourage us because, during those times, we can rely fully on strength from God. We will find He is very near, ready to give us the strength and power to go on. We must trust Him; He has an infinite supply of everything we need. We might become faint and feel that we have no might, but don't worry; God has more than enough for all of us.
--Pastor Tim