“My grace is sufficient for you, for my power is made perfect in weakness.” 2 Corinthians 12:9
God’s design is to make you a showcase for Jesus’ power.
Let God be God here. If he wills to show the perfection of his Son’s power in our weakness instead of by our escape from weakness, then he knows best; trust him. Hebrews 11 is a good guide here. It says that by faith some escaped the edge of the sword (v. 34) and by faith some were killed by the sword (v. 37). By faith some stopped the mouths of lions, and by faith others were sawn asunder. By faith some were mighty in war, and by faith others suffered chains and imprisonment (see also Philippians 4:11–13).
The ultimate purpose of God in our weakness is to glorify the kind of power that moved Christ to the cross and kept him there until the work of love was done. Paul said that Christ crucified was foolishness to the Greeks, a stumbling block to the Jews, but to those who are called it is the power of God and the wisdom of God (1 Corinthians 1:23f.).
The deepest need that you and I have in weakness and adversity is not quick relief, but the well-grounded confidence that what is happening to us is part of the greatest purpose of God in the universe—the glorification of the grace and power of his Son—the grace and power that bore him to the cross and kept him there until the work of love was done. That’s what God is building into our lives. That is the meaning of weakness, insults, hardships, persecution, calamity.