'Bowed the Knee' in the Bible

For they have abandoned Me; they have bowed the knee to Ashtoreth, the goddess of the Sidonians, to Chemosh, the god of Moab, and to Milcom, the god of the Ammonites. They have not walked in My ways to do what is right in My eyes and to carry out My statutes and My judgments as his father David did.