"But man's eyes are blind through sin, and he can discern no part of God's truth till the Spirit opens them. Inner illumination, leading directly as it does to a deep, inescapable conviction, is thus fundamental to the Spirit's work as a teacher."

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Infallible denotes the quality of never deceiving or misleading and so means wholly trustworthy and reliable; inerrant means wholly true. Scripture is termed infallible and inerrant to express the conviction that all its teaching is the utterance of God who cannot lie, whose word, once spoken, abides for ever, and that therefore it may be trusted implicitly.

— J. I. Packer