Revelation and Reason by Emil Brunner.

Emil Brunner defines the nature of revelation as a historical encounter. Revelation refers to the mystery of the sovereign God freely and uniquely manifesting himself as the eternal within historical time. Thus revelation is an objective encounter. However, it is also subjective, because revelation must reach its goal through acknowledgment by humans, who are the only beings created with capacity to receive the word of God and who are held responsible to respond and obey. As an “I-Thou” encounter, it is distinctively personal, despite the disparity between the eternal and the temporal. Because God is preeminently a person, we are made persons.