Refugee crises in modern times have raised questions concerning what degree of hospitality is owed the stranger or foreigner whose motivation is a new, safe, and secure home rather than being treated as a guest passing through on a time-limited visa. Jacques Derrida’s ideas of both conditional hospitality (e.g., tourists) and unconditional hospitality (e.g., strangers) need to be explored from the perspective of philosophical and ethical traditions including Jewish, Christian, and Muslim ethics.