Article Seven of the United States Constitution
The Congress debated a lot about the Constitution.  Members of Congress did not agree on whether Congress should support the new Constitution or not.  On September 28, the Congress came to a compromise.  They decided just to give the states the Constitution and let them vote on it.  Congress would not suggest that the states pass the Constitution, or that they not pass it.  This way, the decision would truly be up to the states; no state would be affected by Congress's opinion.