Why is the cross of Christ a stumbling block

Paul said to some the cross of Christ is a stumbling block and to others it's just foolish. What does this mean and why is it this way? We talk about this statement Paul makes in 1 Corinthians 1:23 in this episode. To find an answer we compare two great sermons from the Bible (Acts 2 and Acts 17) and look at the audience for both and the results of both. Hope you enjoy the conversation and please feel free to share your thoughts. Thanks!