Yes or no
Do you believe that your oath is a promise to God?
It is fundamental that anyone who takes an oath explain why they are taking it, what they think it means, and how they understand themselves to be accountable once they take it.
The examination I would propose would seek answers along those lines, and in the candidate’s own words.
Those who honestly seek public service ought not, and will not, shy away from probing questions as to their principles.