Faith in God

I see that the rabbi (several times) says that the definition of God is that what He says must be done.
And the example the Rabbi gives for this is – the laws of morality,
If a person says, “I understand that it is immoral to murder, but why not murder,” he probably doesn’t understand what he is saying.
And in my opinion, this is absolutely not true, because a person can understand what is moral and what is not, and still think that morality is not binding (just as the rabbi also claims that morality in itself is not binding if there is no God).
 
And the rabbi’s proof that judges in the Torah are called God, because the definition of a judge is “someone who must do what he says,” is generally puzzling to me for two reasons.
A. Because in my opinion, a judge is only an authority to determine whether it is permissible to exert a certain force on you (such as imprisonment, spending money, etc.), and if you don’t listen to him, you will be punished.
on. The rabbi himself says that only the “Creator of the World” is allowed to “listen to him just because he said so,” and if one behaves this way towards any other being, this is strictly “idolatry.”
So doesn’t this contradict what the rabbi said a bit? Because according to the rabbi’s definition, it seems that the Torah is binding on the Jewish people.
 
P.S.
I’m sorry I’m writing everything in the third person, it’s stronger than me 😉
And I wanted to say a big thank you to the rabbi for all the lessons that made me very wise in many areas, and with his exceptional ability to explain things.
It’s really not obvious that the rabbi invests so much and records and uploads everything to YouTube, so a huge thank you 🙏