'Custom' in the Bible

She looked around and there was the king, standing near a column, as was the royal custom! He was accompanied by the commanding officers, along with trumpeters who stood beside the king. All the people of the land sounded trumpets in their excitement. But Athaliah tore her clothes and bellowed, "It's a plot! A conspiracy!"

While they continued to fear the LORD, they served their own gods, following the custom of the nations whom they had carried away from there.