A letter on God and the Constitution written by George Washington is up for sale after spending decades in a private collection. The letter to Richard Peters, speaker of the Pennsylvania Constitution, is signed Sept. 7, 1788, and praises God for the ratification of the U.S. Constitution. Written a week after Washington told Alexander Hamilton that he would likely accept calls to assume the presidency, the letter came at a time when the Constitution was under attack. Some states wanted to hold a second Convention that may have undermined the Constitution. “It would seem from the public Gazettes that the...