See quotation.

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1781.  The Old Lights held that the civil magistrate was a creature framed on purpose to support ecclesiastical censures with the sword of severity; but the New Lights maintained, that no power or right to concern himself with church excommunication.—Samuel Peters, ‘History of Connecticut,’ p. 288 (Lond.). See also pp. 273, 286.

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*** In a theological sense, “New Light” is an older phrase than the other. See N.E.D., s.v. LIGHT.

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