We know that the cross was an instrument of torture and execution. However, Scripture also uses the term “cross” to refer to any suffering that one endures because he is believer: the painful denial of the desires of the flesh; ridicule and persecution from unbelievers; etc. This is one reason people reject religion. They see Christians struggling in life with these crosses, while non-Christians often seem perfectly happy. Even the prophet Jeremiah asked, “Why do all the faithless live at ease?” (12:1).
Today, Jesus asks us to rethink suffering under the cross. It is not pointless pain. Our crosses are not how we pay for sin. Jesus already did that on his cross. Our crosses are not redemptive, but they are constructive. Any suffering unbelievers face is only bad, a foretaste of worse to come. But the suffering believers face under the cross is only good, a way Christ connects us tightly to himself with fire-tested faith.
Sermon begins just before the 25 minute mark.