Revelation and Being and the Trinity.

The Doctrine of the Trinity, like all theology, is derived from the self-disclosure of God which is made manifest as real in faith. It can be nothing other than the interpretation of the "salvation-event" proceeding a posteriori.

Weber, 379.

Thus, Weber starts this section on the relation of the Trinity to the "salvation-event", i.e., the sending, life, death, and resurrection of Jesus Christ and the subsequent outpouring of the Spirit. In this event, in this 'act', God does not reveal something other than who he is and has always been, Father, Son, and Spirit. Thus we can say that the revelation of God's being is in God's acting. Not only the revelation, but the being of God is in God's act. God is what God does. That sort of thing.

In this act, and in God's being, God is out to utterly destroy the "walled insularity of man, his enslavement to the powers and forces..." (Weber, 381). He does this, as God was in Christ reconciling the world to himself. (II Cor. 5:19) He also does this through the gift, act, and "reception of the Spirit, [where] revelation becomes 'subjective reality' and thus 'possibility'" (Weber, 386). Although our knowledge of God in his revelation is imperfect because our knowledge of revelation is imperfect, this is still how we can and do know anything about God (Weber, 388).