That seems like a strange statement in sacred Scripture, doesn’t it? We know from both history and personal experience that we all go from whatever strength we have to weakness . . . and ultimately to death.
The comfort in Psalm 84:7 is not found in our physical strength, but rather in our spiritual strength. In our pilgrimage toward the Celestial City, we actually find ourselves going from weakness to weakness physically. All the valleys, deserts, and wilderness experiences we encounter in this lifetime take their physical toll on us over the years, until one day we pass through the valley of the shadow.
But through every physical challenge we face on this side of heaven, we are strengthened by sipping from the wells of our salvation that God has set before us. You see, we have been promised every spiritual blessing in Christ (Ephesians 1:3), so as we weaken in our physical nature we are strengthened in our spiritual nature, which is being perfected as we progress toward our promised land.
Going from strength to strength is simply a matter of growing in God’s grace. We know where we are ultimately going and we know we have been given everything we need to get there. We also know that we don’t go alone . . . and that, beloved, is a source of increasing strength in the lives of the saints of God.
We can go from strength to strength because we know that He who began a good work in us will carry that work on to completion (Philippians 1:6). Nothing—not even our own failures or faithlessness—can stop God from finishing what He started in us and that truth allows us to tap into the streams of strength that flow from our Savior. One day soon, we shall all appear before God in the heavenly Zion. And on that day, we will fully realize the truth that we did indeed go from strength to strength on our way to spending eternity with our Savior.
This is the Gospel. This is grace for your race. NEVER FORGET THAT . . . AMEN!