1. As, then, after those first discussions which, according to the requirements of the case, we held at the beginning regarding the Father, Son, and Holy Spirit, it seemed right that we should retrace our steps, and show that the same God was the creator and founder of the world, and the Father of our Lord Jesus Christ, _i.e._ that the God of the law and of the prophets and of the gospel was one and the same; and that, in the next place, it ought to be shown, with respect to Christ, in what manner He who had formerly been demonstrated to be the Word and Wisdom of God became man; it remains that we now return with all possible brevity to the subject of the Holy Spirit. It is time, then, that we say a few words to the best of our ability regarding the Holy Spirit, whom our Lord and Saviour in the Gospel according to John has named the Paraclete. For as it is the same God Himself, and the same Christ, so also is it the same Holy Spirit who was in the prophets and apostles, _i.e._ either in those who believed in God before the advent of Christ, or in those who by means of Christ have sought refuge in God. We have heard, indeed, that certain heretics have dared to say that there are two Gods and two Christs, but we have never known of the doctrine of two Holy Spirits being preached by any one.[250] For how could they maintain this out of Scripture, or what distinction could they lay down between Holy Spirit and Holy Spirit, if indeed any definition or description of Holy Spirit can be discovered? For although we should concede to Marcion or to Valentinus that it is possible to draw distinctions in the question of Deity, and to describe the nature of the good God as one, and that of the just God as another, what will he devise, or what will he discover, to enable him to introduce a distinction in the Holy Spirit? I consider, then, that they are able to discover nothing which may indicate a distinction of any kind whatever.