(FOXNEWS) — 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 House, 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.

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