Who are the antagonist of the story david and goliath?

In the biblical story of David and Goliath, Goliath serves as the primary antagonist. He is a giant Philistine warrior who challenges the Israelites to send out a champion to fight him, instilling fear in their ranks. David, a young shepherd, ultimately confronts Goliath, representing the underdog who overcomes the seemingly insurmountable odds posed by the formidable giant. The conflict symbolizes the struggle between the oppressed and their oppressors.