The Noah covenant speaks to our commonality, the Abraham and Sinai covenants to our differences. That is what makes Abrahamic monotheism different from tribalism on the one hand (each nation with its own God) and universalism on the other (one God, therefore one way). Neither tribalism nor universalism are adequate to the human situation. Tribalism envisages a world permanently at war (my god is stronger than yours). Universalism risks a dualistic world divided between the saved and the damned (I have the truth, you have only error11), and hence to holy wars, crusades and jihads.