In this powerful declaration, God is communicating to Pharaoh through Moses the profound relationship He has with Israel. By referring to Israel as His 'firstborn son,' God is using a metaphor that would have been deeply understood in the ancient context. The firstborn son in a family was not only the heir but also the one who carried the family's name and legacy forward. This status came with both privileges and responsibilities.
God's choice of Israel as His firstborn signifies a special bond and a promise of protection and blessing. It also implies a moral and spiritual responsibility on Israel's part to live according to God's laws and to be a light to other nations. This statement sets the stage for the unfolding narrative of liberation from Egypt, as God is about to demonstrate His power and commitment to His people. It is a reminder of the covenant relationship that God establishes with His people, one that is rooted in love, choice, and divine purpose.