When we preach Christ, we must preach him crucified and risen. He’s not simply a good teacher. We’ve had lots of good teachers. He’s not simply a virtuous man. We’ve had lots of virtuous people, though none such as he. For these reasons he was not crucified.
He is simply the Son of God, suffering servant for this sinful world. His main purpose was to die for us. His blood purchases us nothing less. A Christ not crucified is no Christ at all,.
Not just crucified but risen too. While his death reconciles us to God, it gives us no hope of a future. His resurrection means that death has been defeated, the consequences of sin.