[Spiritual friendship] is eagerly helping one another know, serve, love, and resemble God in deeper and deeper ways.
Timothy KellerWe instinctively tend to limit for whom we exert ourselves. We do it for people like us, and for people whom we like. Jesus will have none of that. By depicting a Samaritan helping a Jew, Jesus could not have found a more forceful way to say that anyone at all in need - regardless of race, politics, class, and religion - is your neighbour. Not everyone is your brother or sister in faith, but everyone is your neighbour, and you must love your neighbour.
Timothy KellerThose who believe they have pleased God by the quality of their devotion and moral goodness naturally feel that they and their group deserve deference and power over others. The God of Jesus and the prophets, however, saves completely by grace. He cannot be manipulated by religious and moral performance--he can only be reached through repentance, through the giving up of power. If we are saved by sheer grace we can only become grateful, willing servants of God and of everyone around us.
Timothy Keller