The Constitution and Religion

Many have said that the Constitution did not want to encourage any religion at all (or sanction it) - otherwise the document would have actually talked about such things specifically. However, on the Library of Congress site we find the following:

That religion was not otherwise addressed in the Constitution did not make it an "irreligious" document any more than the Articles of Confederation was an "irreligious" document. The Constitution dealt with the church precisely as the Articles had, thereby maintaining, at the national level, the religious status quo. In neither document did the people yield any explicit power to act in the field of religion. But the absence of expressed powers did not prevent either the Continental-Confederation Congress or the Congress under the Constitution from sponsoring a program to support general, nonsectarian religion.

See Religion and the Federal Government (Library of Congress)