May I suggest you take this statement seriously. The only claim to one God is in the Judeo-Christian faith. All others seem to have many gods. This warning was given to the Israelites because of all the pagans that surrounded them. I think it's really interesting how the real bashing of religion is always toward the Judeo- Christians. Must be that there's something there to really envy!
Even the New Age Madame Blavatsky gang couldn't stand the Judeo- Christians. Too much of a threat to their jibberish!