man—determines their unity. For Barth law and gospel have their unity in the fact that they are both God’s address, and as God’s address their essential content is grace. The very fact that God speaks to us at all is in itself grace, and this is true whether he speaks through gospel or through law. The Word of God, when it is addressed to us and when we are allowed to hear it, demonstrates its unity in that it is always grace; i.e., it is free, non-obligatory, undeserved divine goodness, mercy, and