"The founding fathers were mostly deist"

That statement was made here in the comments for this post. As is usually the case whenever the assertion that the Founding Fathers were "mostly deist," no facts are provided to back it up. And when an attempt to provide facts is made, it inveriably consists of pages of quotes from a small number of early Americans - some Founding Fathers, some not (Jefferson is a favorite despite the fact that he is not a Founding Father - he was in France at the time of the drafting of the Constitution), some even from people who weren't even alive until after 1800 (an atheist on TheologyWeb's forums once tried to offer up quotes by Abraham Lincoln as an example of the Founding Fathers being non-Christians!). In no uncertain terms, the assertion is a bald-faced lie. Now, I'm not calling everyone who repeats it a liar, but a lot of people who repeat it foolishly take the claim at face-value.

So what's the truth? Like the rest of the country at the time, the Founding Fathers were over 90% Christian:

The Faith of Our Fathers

The denominational affiliations of these men were a matter of public record. Among the delegates were 28 Episcopalians, 8 Presbyterians, 7 Congregationalists, 2 Lutherans, 2 Dutch Reformed, 2 Methodists, 2 Roman Catholics, 1 unknown, and only 3 deists--Williamson, Wilson, and Franklin--this at a time when church membership entailed a sworn public confession of biblical faith.[1]

This is a revealing tally. It shows that the members of the Constitutional Convention, the most influential group of men shaping the political foundations of our nation, were almost all Christians, 51 of 55--a full 93%. Indeed, 70% were Calvinists (the Episcopalians, Presbyterians, and the Dutch Reformed), considered by some to be the most extreme and dogmatic form of Christianity.

Evidences of Faith in the Buildings, Memorials, and Forefathers of the United States

Fifty-two of the 55 founders of the Constitution were members
of the established orthodox churches in the colonies-Truth!
It was common for leaders of that time to be a member of a church.
According to research conducted by U.S.Constitution.net, here is the breakdown of the religion of the framers of the U.S. Constitution:

Congregationalist-7
Deist-1
Dutch Reformed-2
Episcopalian-26
Lutheran-1
Methodist-2
Presbyterian-11
Quaker-3
Roman Catholic-2

Some either changed church affiliation in their lifetimes or had dual membership.

Were the Founding Fathers "Deists," "Freethinkers," and "Infidels?"

Don't underestimate the power of liberals' delusions to get in the way of these facts, however. The false assertion about the Founding Fathers being a bunch of deists will continue to exist, probably forever.