All names of God remain hallowed because they have been used not only to speak of God but also to speak to him. I and Thou (1923)
Some would deny any legitimate use of the word God because it has been misused so much. Certainly it is the most burdened of all human words. Precisely for that reason it is the most imperishable and unavoidable. I and Thou (1923)
When we rise out of [the night] into the new life and there begin to receive the signs, what can we know of that which — of him who gives them to us? Only what we experience from time to time from the signs themselves. If we name the speaker of this speech God, then it is always the God of a moment, a moment God. Between Man and Man (1965)