And he did very abominably in following idols, according to all things as did the Amorites, whom the LORD cast out before the children of Israel.
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George Leo Haydock
Amorrhites. The Sidonians still adored the idols Baal and Astaroth, with the utmost exertions of cruelty and lust. This was the religion which Achab wished to establish, more than any of his predecessors. (Calmet)