God was to bless all nations through Abraham, all peoples would become the descendants of Abraham through Jesus. Is this the God you worship? The God of all nations? Or are you still worshipping the tribal God? The god who created the world and has especially blessed your tribe above others. The god who hates and punishes evil doers (defined as those who are not like you) but blesses those who are righteous (defined by those who are like you).
This is the God of your tribe, not the God of all tribes. Israel wasn’t too thrilled with the God of all tribes—they wanted him to remain their special God. The message of salvation from sin and freedom for all peoples was not a message received well by the Jews. The High Priests of the one true tribal God made sure that Jesus was killed.
Is your God the god who justifies your culture, the god who defends your lifestyle-- the things you do each day, or is he the God who calls your culture into question, the God who calls you to his culture?
See Donovan, Christianity Rediscovered., pp.41-53. His examples call into mind some examples with the Turkana, and point to the tribal vision we often have in America.