Christ and the cross are the center and the reality of the Bible. In their writing, all the apostles emphasized Christ and the cross, and when we know this matter, we will truly appreciate the preciousness of the Bible. “In order for us to grow in life, to see the spiritual things and the spiritual way, and to be proper Christians, we must know Christ and the cross. A person who does not know Christ and the cross cannot do a spiritual work or service that satisfies God’s heart. In order to grow spiritually or do a spiritual work, such as preaching the gospel or administrating the church, we must know Christ and the cross.”