If I may ask:
How does “One nation under God” offend your religion?
What is untrue?
The part about being one nation under God, for a start. We are not a "nation". The claim that we are one and indivisible is a political program, not a statement of fact. To call ourselves "under God" is to mock the Lord. Also, the part about "liberty 'n' justice for all". No serious person believes that.