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The Reforms of Asa
16Also he removed Maachah, the mother of Asa the king, from being queen mother, because she had made an obscene image of Asherah; and Asa cut down her obscene image, then crushed and burned it by the Brook Kidron. 17But the high places were not removed from Israel. Nevertheless the heart of Asa was loyal all his days.
2 Chronicles 15:16-18 (NKJV)