Ahead of that debate last October, the Presbyterian church wrote to all assembly members stating its opposition to any change in the legal definition of marriage.

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Ahead of Monday's debate, the Presbyterian Church had written to all assembly members stating its opposition to any change in the current legal definition of marriage.

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Sensible enough in concept, the definition is maddeningly vague in application, largely because it is based upon a 1974 General Assembly resolution that was aimed at guiding state conduct, not defining individual criminal liability.

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