Marcion of Sinope (c. 85–160 A.D.) was one of the most controversial figures in early Christianity, known for his radical rejection of the Old Testament and his dualistic view of God. He argued that the God of the Old Testament—whom he called the Demiurge—was an inferior, wrathful, and legalistic being distinct from the supreme God of love and mercy revealed by Jesus Christ. As part of this belief system, Marcion rejected Genesis 1:31, where God looks upon His creation and declares it to be “very good.” To Marcion, this statement was not only false but evidence of the Demiurge’s self-deception, for he believed the material world was fundamentally flawed and corrupt.

Marcion taught that the Demiurge, though powerful, was ignorant of the true supreme God and mistakenly saw himself as the ultimate deity. According to Marcion, this creator’s declaration of the world’s goodness in Genesis 1:31 was either an outright lie or a sign of his delusion. Marcion viewed the physical world as a place of suffering, death, and imperfection, which he attributed to the Demiurge’s incompetence or malice. He believed that Jesus Christ was not the fulfillment of Old Testament prophecy but rather a divine emissary sent by the supreme God to rescue humanity from the oppressive rule of the Demiurge and his corrupted creation.

Because of this radical theology, Marcion completely rejected the Old Testament, viewing it as the revelation of a false god. He saw Genesis 1:31 as an attempt to glorify an unworthy creator, whom he believed was responsible for the evils of existence. Marcion’s disdain for the Old Testament led him to construct his own canon of Scripture, consisting only of an edited version of the Gospel of Luke and ten of Paul’s epistles, from which he removed any references that seemed to affirm the Old Testament God. His rejection of Genesis 1:31 was part of a broader effort to undermine the authority of the Jewish Scriptures and promote his vision of a purely New Testament faith.

Early Christian Theologians’ Refutation of Marcion

Early Christian theologians forcefully opposed Marcion’s teachings, affirming the unity of Scripture and defending the goodness of God’s creation. One of the most vigorous responses came from Tertullian, who wrote extensively against Marcion in his work Against Marcion (c. 207 A.D.). Tertullian directly challenged Marcion’s dualism, arguing that Christ Himself affirmed the goodness of creation. He pointed to John 1:3—“All things were made by him; and without him was not anything made that was made”—to show that Christ was not opposed to the Creator but was, in fact, one with Him in the act of creation. If Christ was truly sent by the supreme God, as Marcion claimed, then He would not have affirmed a world that was supposedly the product of an evil being.

Tertullian also emphasized that human sin, not the created order itself, was the source of evil in the world. The material world, as fashioned by God, was originally good, but it was corrupted by humanity’s rebellion. The suffering and imperfection Marcion saw as evidence of an evil creator were, in reality, the consequences of human disobedience, not flaws inherent in creation. By rejecting Genesis 1:31, Marcion failed to recognize the biblical teaching that God’s creation was good in its original state, and that salvation in Christ was about restoring that goodness, not escaping from it.

Irenaeus, another prominent early theologian, also refuted Marcion’s claims, particularly in his work Against Heresies (c. 180 A.D.). He argued that the God of the Old Testament and the God of the New Testament were not two separate beings but one and the same. Irenaeus upheld the truth of Genesis 1:31, affirming that creation was indeed “very good” as God declared. He explained that Christ’s mission was not to overthrow the Old Testament God but to bring about the restoration of what had been tainted by sin. To Irenaeus, the unity of the Old and New Testaments was essential to understanding the full narrative of redemption.

The Church ultimately condemned Marcion’s teachings as heretical. His radical distinction between the Old and New Testament God was seen as a direct attack on the integrity of Christian doctrine. In response to Marcion’s rejection of the Old Testament, the Church clarified the canon of Scripture, affirming the continuity between the Old and New Testaments and the essential role of Genesis in the Christian understanding of creation and salvation.

Marcion’s influence, though powerful in his time, was eventually overcome by the Church’s firm defense of biblical unity. His rejection of Genesis 1:31 and his claim that the material world was inherently evil were deemed contrary to the teachings of Christ and the apostles. The early Church maintained that the world was originally created good, and that the problem lay not with creation itself but with sin. Through Christ, God was working to redeem and restore what was lost, fulfilling rather than abolishing the divine plan first revealed in Genesis.