Remove it. God - no matter who's god - has no place in government. We have freedom of religion and freedom FROM religion. There are many people in our country who do not believe in a singular God. There are many people who don't believe in God at all. There are many other monotheists who find the use of God in American government uncomfortable because it clearly refers to the Christian God.
It is a way of alienating people and making them feel less American. I always felt uncomfortable saying "under God" in the pledge so I choose to leave it when I give my allegiance.