Leftist or Progressive judges do not believe in God. Oaths mean nothing to them, unless there is force backing up the oath.
The Amendment is clear. The Democrats do not like it, so the judge simply says it doesn’t matter, I can do what I want.
There is a force backing up the Oath. Governments derive their just powers from the consent of the governed, meaning that individuals still retail all the powers of government, and more. The militant left counts on our forbearance.