It’s common knowledge that the heart and soul of Christianity is belief in Jesus. But, what does it mean to believe in Jesus? That question is the basis of Paul’s teaching about the resurrection in 1 Corinthians 15. And it is apparent from Paul’s comment in verse 2 that belief in Jesus can be “in vain”, meaning simply, that belief in Jesus can be invalid; it can be wrong. As I thought about this, I wrote down what I understand the Bible to teach about what it means to believe in Jesus. A biblical belief in Jesus means…