Most of our businesses are closed or have less open hours on Sunday to allow for a day of worship.
When we say the pledge we say, "one nation, under God"
We have "in God we trust" printed on our money.
We he the ten commandments posted on judicial buildings.
We have freedom of religion in our country. (God gives every man free will - the pilgrims came here for religious freedom and didn't want to impose their religion on anyone else as had been done to them)