2 Corinthians 12:9: Whose Power? Whose Weakness?

What does Paul mean when he says, "My strength is made perfect in weakness"? Does God promise to make us stronger through suffering? What if our weakness never goes away? We examine 2 Corinthians 12:9 through church history, its historical and textual context, and the reality of Christian suffering to discover what Paul actually teaches about Christ's power and human weakness.