Marcion
Founder of Marcionism, a heresy that proscribed the Old Testament and taught it was produced by a sinister power. Marcionites held the God of the Old Testament was ignorant and wrathful.
Preface and Praise of Sacred Scripture
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Heresies Proscribing the Old Testament
— His heresy proscribed the Old Testament; taught OT produced by sinister power
"then of Marcion"