But this precious treasure—this light and power that now shine within us—is held in perishable containers, that is, in our weak bodies. So everyone can see that our glorious power is from God and is not our own.
We are pressed on every side by troubles, but we are not crushed and broken. We are perplexed, but we don’t give up and quit. We are hunted down, but God never abandons us. We get knocked down, but we get up again and keep going. Through suffering, these bodies of ours constantly share in the death of Jesus so that the life of Jesus may also be seen in our bodies.
Yes, we live under constant danger of death because we serve Jesus, so that the life of Jesus will be obvious in our dying bodies. 1So we live in the face of death, but it has resulted in eternal life for you.
13But we continue to preach because we have the same kind of faith the psalmist had when he said, “I believed in God, and so I speak.” We know that the same God who raised our Lord Jesus will also raise us with Jesus and present us to himself along with you. All of these things are for your benefit. And as God’s grace brings more and more people to Christ, there will be great thanksgiving, and God will receive more and more glory.
2 Corinthians 4:7-15

God never wastes suffering, not a scrap of it. He redeems all of it for His glory and our blessing. The classic Scripture for the concept that suffering displays God's strength through our weakness is found in 2 Corinthians 12:8-10, where we learn that God's grace is sufficient for us, for His power is perfected in weakness. Paul said he delighted in weaknesses, hardships, and difficulties "for when I am weak, then I am strong."

Our culture disdains weakness, but our frailty is a sign of God's workmanship in us. It gets us closer to what we were created to be--completely dependent on God. Several years ago I realized that instead of despising the fact that polio had left me with a body that was weakened and compromised, susceptible to pain and fatigue, I could choose to rejoice in it. My weakness made me more like a fragile, easily broken window than a solid brick wall. But just as sunlight pours through a window but is blocked by a wall, I discovered that other people could see God's strength and beauty in me because of the window-like nature of my weakness! Consider how the Lord Jesus was the exact representation of the glory of the Father--I mean, He was all window and no walls! He was completely dependent on the Father, choosing to become weak so that God's strength could shine through Him. And He was the strongest person the world has ever seen. Not His own strength; He displayed the Father's strength because of that very weakness.

The reason His strength can shine through us is because we know God better through suffering. One wise man I heard said, "I got theology in seminary, but I learned reality through trials. I got facts in Sunday School, but I learned faith through trusting God in difficult circumstances. I got truth from studying, but I got to know the Savior through suffering."

Sometimes our suffering isn't a consequence of our actions or even someone else's. God is teaching other beings about Himself and His loved ones--us--as He did with Job. The point of Job's trials was to enable heavenly beings to see God glorified in Job. Sometimes He trusts us with great pain in order to make a point, whether the intended audience is believers, unbelievers, or the spirit realm. Joni Eareckson Tada, no stranger to great suffering, writes, "Whether a godly attitude shines from a brain-injured college student or from a lonely man relegated to a back bedroom, the response of patience and perseverance counts. God points to the peaceful attitude of suffering people to teach others about Himself. He not only teaches those we rub shoulders with every day, but He instructs the countless millions of angels and demons. The hosts in heaven stand amazed when they observe God sustain hurting people with His peace."{4}

I once heard Charles Stanley say that nothing attracts the unbeliever like a saint suffering successfully. Joni Tada said, "You were made for one purpose, and that is to make God real to those around you."{5} The reality of God's power, His love, and His character are made very, very real to a watching world when we trust Him in our pain.