Rather than quote one professor out of tens of thousands with varying opinions, I will quote someone else. And with this, again, I say unto you that the out-of-context term "separation of church and state" is intended to keep the government out of religion, not religion out of the government.
"I shall need, too, the favor of that Being in whose hands we are, who led our fathers, as Israel of old, from their native land and planted them in a country flowing with all the necessaries and comforts of life; who has covered our infancy with His providence and our riper years with His wisdom and power, and to whose goodness I ask you to join in supplications with me that He will so enlighten the minds of your servants, guide their councils, and prosper their measures that whatsoever they do shall result in your good, and shall secure to you the peace, friendship, and approbation of all nations."
Thomas Jefferson
2nd Inaugural address
Monday, March 4, 1805
Class dismissed...
"Everything you read on the interwebs is true."
Abraham Lincoln.