James teaches here that there is only one true lawgiver—God. He alone has the power to save and destroy. This reminds us of the limits of human authority and the need for humility. It is not for us to assume the role of judge over others; we are called to live under God's law, which brings salvation and life. In our own lives, we must avoid becoming self-righteous or judgmental toward others, recognizing that only God has the final say. The lawgiver's authority is not to be usurped by human pride. This verse challenges us to live with a heart of humility, submitting ourselves to God's law, trusting that He alone is capable of saving and judging according to His perfect will.