John Adams was George Washington's Vice President, he was the 2nd President of the United States, and he signed the Declaration of Independence.  He also influenced the American states to ratify the Constitution.

"I have examined all religions, as well as my narrow sphere, my straightened means, and my busy life, would allow; and the result is that the Bible is the best Book in the world.  It contains more philosophy than all the libraries I have seen."

(Source: John Adams.  This was written in a letter to Thomas Jefferson on December 25, 1813.  This can be found in the "Adams-Jefferson Letters.")

"The Christian religion is, above all the Religions that ever prevailed or existed in ancient or modern times, the religion of Wisdom, Virtue, Equity, and Humanity.  Let the Blackguard Paine say what he will; it is Resignation to God, it is Goodness itself to Man."

(Source: John Adams.  This was a response to Thomas Paine's assertions and stated in Adams' diary on July 26, 1796.)