We practice hospitality not because it is primarily a culturally acceptable thing to do. As Christians we imitate the hospitality, mutuality interdependence that we see within the godhead. If we look at the trinity we see Father, Son and Holy Spirit interrelating with each other. They welcome us into that intimate relationship that they have with one another. So we also need to welcome the weaker ones, the stranger, the marginalised. We need to practice being Trinitarian by showing hospitality.