1. Three Threats, Three Apologists, Three Fathers

The second century of Christian history saw rapid growth in the Christian movement, as the fledgling church faced external political threats from Rome, combined with internal philosophical threats from heretical foes within. These pressures called forth the remarkable apologetical labors of men like Justin Martyr, Irenaeus, and Tertullian. At the same time, the church was blessed with leaders who had been trained by the apostles themselves, and who provided a remarkable example of courage and confidence in the face of overwhelming resistance.