Conversation so far:
What philosophy did John Witherspoon follow?
John Witherspoon embraced the concepts of Scottish common sense realism.
was John Witherspoon religious?
John Witherspoon was a Presbyterian minister
Did John Witherspoon teach any of his beliefs?
John Witherspoon became a major leader of the early Presbyterian Church in America. He also helped organize Nassau Presbyterian Church in Princeton, New Jersey.

Question: why did he argue for the revolutionary?
Self-contained rewrite: why did John Witherspoon argue for the revolutionary?