And he shall go before him in the spirit and power of Elijah, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord.
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Tertullian of Carthage
AD 220
-the one a monogamist, the other a voluntary celibate (for Elias was nothing else than John, who came "in the power and spirit of Elias"