Against Heresies (Adversus Haereses, Complete)

Chapter 8 Vain attempts of Marcion and his followers, who exclude Abraham from the salvation bestowed by Christ, who liberated not only Abraham, but the seed of Abraham, by fulfilling and not destroying the Law when he healed on the sabbath day. Chapter 9 There is but one Author, and one end to both covenants. Chapter 10 The Old Testament Scriptures, and those written by Moses in particular, do everywhere make mention of the Son of God, and foretell his Advent and Passion. From this fact it follows that they were inspired by one and the same God. Chapter 11 The old prophets and righteous men knew beforehand of the Advent of Christ, and earnestly desired to see and hear him, he revealing himself in the Scriptures by the Holy Ghost, and without any change in himself, enriching men day by day with benefits, but conferring them in greater abundance on later than on former generations. Chapter 12 It clearly appears that there was but one Author of both the Old and the New Law, from the fact that Christ condemned traditions and customs repugnant to the former, while he confirmed its most important precepts, and taught that he was himself the end of the Mosaic Law. Chapter 13 Christ did not abrogate the natural precepts of the Law, but rather fulfilled and extended them. He removed the yoke and bondage of the Old Law, so that mankind, being now set free, might serve God with that trustful piety which becomes sons. Chapter 14 If God demands obedience from man, if he formed man, called him and placed him under laws, it was merely for man's welfare; not that God stood in need of man, but that he graciously conferred upon man his favours in every possible manner.…