It is significant that we take an oath to support and defend the Constitution and not an individual leader, ruler, office, or entity. This is true for the simple reason that the Constitution is based on lasting principles of sound government that provide balance, stability, and consistency through time. A government based on individuals — who are inconsistent, fallible, and often prone to error — too easily leads to tyranny on the one extreme or anarchy on the other. The founding fathers sought to avoid these extremes and create a balanced government based on constitutional principles.
The American colonists were all too familiar with the harmful effects of unbalanced government and oaths to individual rulers. For example, the English were required to swear loyalty to the crown, and many of the early colonial documents commanded oaths of allegiance to the king. The founding fathers saw that such a system was detrimental to the continued liberties of a free people. A study of both ancient and modern history illustrates this point. One fairly recent example can be seen in the oaths of Nazi Germany. On August 19, 1934, 90 percent of Germany voted for Hitler to assume complete power. The very next day, Hitler’s cabinet decreed the Law On the Allegiance of Civil Servants and Soldiers of the Armed Forces. This law abolished all former oaths and required that all soldiers and public servants declare an oath of unquestioned obedience to “Adolf Hitler, Fuhrer of the German Reich and people.” Although many of the officers in Hitler’s regime came to realize the error of his plans, they were reluctant to stop him because of the oath of loyalty they had taken to the Fuhrer.
–Jonathan L Rudd
Our Oath of Office: A Solemn Promise