In the middle of writing about his sufferings for the church, Paul explained that the message he preached was a mystery hidden for generations and finally revealed in Christ.
During a time of peace, God built up his church through the preaching of his word and powerful signs.
Christians united to a church are not only members of Christ and his church but also of each other.
Daniel’s three friends preferred to die rather than renounce their faith, knowing that God would be with them no matter what.