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Against Heresies


Explore one of the great Christian historical books in Irenaeus’s Against Heresies, a timeless defense from Christian church history of authentic Christian beliefs against Gnosticism, shaping the core of Christian faith and teaching.

Step back in time to early Christianity and its sacred literature, to the late second century and witness the passionate defense of true Christian faith in Irenaeus’s, Against Heresies. In this enlightening five-volume work, he courageously tackles the teachings of Gnosticism and other heresies, championing the apostolic tradition and the authority of the Church. Irenaeus's Christian apologetics books provide a powerful argument unveiling the unity of the Bible, asserting that God inspires both the Old and New Testaments. Dive into a detailed exploration of Gnostic beliefs and his steadfast critique of their dualism and rejection of the Old Testament. Witness the erudition of Irenaeus as he refutes Gnostic leaders and affirms the core tenets of Christian thought and practice, and theology. Discover the enduring influence of this monumental work from the early Church Fathers writings, which continues to shape Christian theology and doctrine today.


“Error, indeed, is never set forth in its naked deformity, lest, being thus exposed, it should at once be detected. But it is craftily decked out in an attractive dress, so as, by its outward form, to make it appear to the inexperienced (ridiculous as the expression may seem) truer than the truth itself.”

― Irenaeus, Against Heresies


“For the glory of God is the living man, and the life of man is the vision of God.”

― Irenaeus, Against Heresies

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