Absolutely pro. Even before the verse "One nation under God" was added, many of our forefathers thought it should have been added. Lincoln used it his Gettysburg Address, "...that we here highly resolve that these dead shall not have died in vain; that this nation, under God, shall have a new birth of freedom, and that government of the people, by the people, and for the people, shall not perish from the earth."
Thomas Jefferson also sought to have it added. It took many years later before it actually was added and even if you are Agnostic or an Atheist, you won't be held accountable for repeating the words. If it really bothers you, just skip that part while others say the words "under God." We are an Anglo-Saxon country.