I do the same thing, as do my parents. When a woman wrote a play about my dad, who is a pastor, she wrote a sermon for the dad-character to give, and in the sermon God was referred to as "Him." I was annoyed at first, but then decided that the fact that a writer had attended his church for years without even NOTICING he wasn't using a masculine pronoun for G-d was a testament to Dad's ability to come up with graceful pronoun-free sentences. :-)

There are some Christians who read the masculine pronoun for G-d in Hebrew and Greek quite literally. They do not, of course, read the feminine pronouns for the ruach and shekhina quite so literally, of course. No bias there. :-)