According to 1 Kings 11:5 in the Bible, the goddess of the Sidonians was Asherah. Asherah was an ancient Canaanite goddess who was originally worshipped as a consort of the male god El before later being depicted as his wife and the mother of other gods. In the Sidonians' culture, she was considered the goddess of fertility, birth, and motherhood, and was often represented in the form of a symbol known as the Asherah pole, which was a wooden pole or pillar decorated with symbols of fertility and life.
Solomon's association with Asherah, along with other foreign gods, was a clear breach of his covenant with the Lord. By worshipping Asherah and the other false gods, Solomon turned away from the Lord and brought these false beliefs into his palace, leading to the corruption of his rule and the division of his kingdom after his death.