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Man's want of original righteousness and of holy affections toward God, and the corruption of his moral nature and his bias toward evil is called depravity

Henry Clarence Thiessen (1979). “Lectures in Systematic Theology”, p.191, Wm. B. Eerdmans Publishing
Man's want of original righteousness and of holy affections toward God, and the corruption of his moral nature and his bias toward evil is called depravity