Is there sexism in the concept of God as our Father?

Of the various reasons to reject the father concept of God, I consider two: some fathers are terrible parents; and generations of sensitive, well-informed, ethically committed persons have been taught that the father concept of God (at least in isolation from the truth of the motherhood of God) is sexist. I respond to the second concern by reading excerpts from chapters on scientific, philosophical, and spiritual living from my book Living in Truth, Beauty, and Goodness.