Tertullian, Prescription against Heretics 13

The rule of faith is straightforward: from here on out we profess what we defend. We believe in one God, and no other—only the Creator of the world. He produced everything from nothing through His Word, which He sent forth first of all. That Word, called His Son, was seen in various ways in God's name by the Patriarchs, was always heard in the Prophets, and was finally sent from the Spirit of God the Father and His power into the virgin Mary. He was made flesh in her womb, born from her, and came forth as Jesus Christ. From there He preached a new law and a new promise of the kingdom of heaven; He performed mighty works; He was fixed to the cross and rose on the third day; He was snatched up into the heavens and sat at the right hand of the Father. He sent the vicarious power of the Holy Spirit, who acts on believers. He is to come with clarity to take up the saints into the fruit of eternal life and the heavenly promises, and to judge the profane to perpetual fire, with the resurrection of both parties accomplished and the flesh restored.