Luke 24 leaves no doubt about the physical, actual, bodily resurrection of Jesus. On the strength of that witness, the Disciples would be equipped to preach "repentance for forgiveness of sins" to all nations, beginning in Israel. We think we know what means, but there is a nuance of meaning in the original Greek that might modify our understanding of "repentance" and "forgiveness." It is an understanding that the apostle Paul understood and accepted, as stated in Romans 12.