People Need to Remember

Each State has it's own consitution. I will give you examples of different states as to the Preamble.

Ohio---We, the people of the State of Ohio, grateful to Almighty God for our freedom, to secure its blessings and promote our common welfare, do establish this Constitution.
Pennsylvania---We, the people of the Commonwealth of Pennsylvania, grateful to Almighty God for the blessings of civil and religious liberty, and humbly invoking His guidance, do ordain and establish this Constitution.
Florida---We, the people of the State of Florida, being grateful to Almighty God for our constitutional liberty, in order to secure its benefits, perfect our government, insure domestic tranquility, maintain public order, and guarantee equal civil and political rights to all, do ordain and establish this constitution.
Texas---Humbly invoking the blessings of Almighty God, the people of the State of Texas, do ordain and establish this Constitution.
California---We, the People of the State of California, grateful to Almighty God for ourfreedom, in order to secure and perpetuate its blessings, do establish thisConstitution.
Michigan---We, the people of the State of Michigan, grateful to Almighty God for the blessings of freedom, and earnestly desiring to secure these blessings undiminished to ourselves and our posterity, do ordain and establish this constitution.
Idaho---We, the people of the State of Idaho, grateful to Almighty God for our freedom, to secure its blessings and promote our common welfare do establish this Constitution.
Massachussetts---TO OUR BELOVED BRETHREN AND NEIGHBOURS the Inhabitants of the Massachusets, the Governour, Assistants and Deputies assembled in the General Court of that Jurisdiction with grace and peace in our Lord Jesus Christ.
Kentucky---We, the people of the Commonwealth of Kentucky, grateful to Almighty God for the civil, political and religious liberties we enjoy, and invoking the continuance of these blessings, do ordain and establish this Constitution.
South Dakota---We, the people of South Dakota, grateful to Almighty God for our civil and religious liberties, in order to form a more perfect and independent government, establish justice, insure tranquillity, provide for the common defense, promote the general welfare and preserve to ourselves and to our posterity the blessings of liberty, do ordain and establish this Constitution for the state of South Dakota.
Alabama---"We, the people of the State of Alabama, in order to establish justice, insure domestic tranquility, and secure the blessings of liberty to ourselves and our posterity, invoking the favor and guidance of Almighty God, do ordain and establish the following Constitution and form of government for the State of Alabama."

As you can see the Almighty God appears in the preamble of each state's Constitution.
Our currency/money that each of us use today has "In God We Trust".

As the President takes the oath of office, he recites the oath and then says "So Help Me God".

If you go to the United States Supreme Court, you will see engraved on the South Wall Frieze depictions of Moses & the Ten Commandments. On the east side of the building where Moses is the central figure among others, holding both tablets of the Ten Commandments, one in each arm.

In the Library of Congress there is a statue depicting Moses with the Ten Commandments in the Rotunda. Also in the Rotunda is a phrase from Lord Tennyson which reads "One God, One Law, One Element, And One Far-Off Divine Event To Which The Whole Creation Moves."

The U.S. Capitol building has a stained glass window of George Washington praying and these words surrounding him. "Reserve Me O God For In Thee Do I Put My Trust. Psalm 16:1".

Also, the White House itself has the Adams Prayer.