Very nice prayer. Actually almost apolitical and focuses on core values, which is refreshing.
Small side note - we should be careful with the references to forefathers, being that one of them was a known atheist (Jefferson)
Thomas Jefferson was reared as an Anglican and later converted to deism (see Avery Dulles and the letter Dr. Benjamin Waterhouse in 1825). In other words, he became more of a monotheist.