And some Presidents also said this:
John Quincy Adams: "Why is it that, next to the birthday of the Savior of the World, your most joyous and most venerated festival returns on this day [on the Fourth of July]? Is it not that, in the chain of human events, the birthday of the nation is indissolubly linked with the birthday of the Savior? That it forms a leading event in the progress of the gospel dispensation? Is it not that the Declaration of Independence first organized the social compact on the foundation of the Redeemer's mission upon earth? That it laid the cornerstone of human government upon the first precepts of Christianity?" From John Quincy Adams, An Oration Delivered Before the Inhabitants of the Town of Newburyport at their Request on the Sixty-First Anniversary of the Declaration of Independence, July 4, 1837 (Newburyport: Charles Whipple, 1837), page 5 Elsewhere he writes: "We have no government armed with power capable of contending with human passions unbridled by morality and religion...Our constitution was made only for a moral and religious people. It is wholly inadequate to the government of any other."
George Washington in his Farewell Address: "Of all the dispositions and habits which lead to political prosperity, religion and morality are indispensable supports. In vain would that man claim the tribute of patriotism, who should labor to subvert these great pillars." And again: "Let it simply be asked, 'Where is the security for life, for reputation, and for property, if the sense of religious obligation desert?"
Thomas Jefferson: "And can the liberties of a nation be thought secure when we have removed their only firm basis--a conviction in the minds of the people that these liberties are the gift of God?" From Jefferson's "Notes on the States of Virginia," Query XVIII, 1781, page 289
What some of the other founding fathers have said.
Patrick Henry. "It cannot be emphasized too strongly or too often that this great nation was founded, not by religionists, but by Christians; not on religions, but on the gospel of Jesus Christ."
Benjamin Franklin. "If a sparrow cannot fall to the ground without His notice, is it probable that an empire can rise without His aid? We've been assured in the sacred writing that, 'Except the Lord build the house, they labor in vain that build it.' "
John Jay: "Providence has given to our people the choice of their rulers, and it is the duty--as well as the privilege and interest--of our Christian nation to select and prefer Christians for their rulers."
To claim that we owe the Constitution to Deism is simply not true. . Of the 55 Founding Fathers who worked on the Constitution 52 were members of Christian churches. See David Barton, The Myth of Separation (Aledo, TX: WallBuilder Press, 1991), pp. 22-25. Quoting from M.E. Bradford, A Worthy Company (NH: Plymouth Rock Foundation 1982), Table of Contents.