The best justification for Torah is good parents. But if you don't have that then you have to go about it in a more circular fashion.
The way I try to justify Torah is by immediate non intuitive knowledge. The way I try to go about explaining this is thus: You have an object in front of you you can feel and see and smell. How do you know the actual has anything to do with how you perceive it? You depend on empirical sensory perception to tell you things about the object. But let's take something you can't perceive directly. E.g. 2+2= 4. You don't have a physical way to test this. You depend on reason. But there are however areas that reason starts to contradict itself. Questions like, "Is the universe infinite?" "Is time infinite?" Unconditioned realities. Knowledge about unconditioned realities depends on immediate non intuitive knowledge. These are things like when Socrates asked the slave about some aspect of a triangle. The slave did not know. But Socrates by a skilled set of questions guided the slave until the slave knew the answer. So he showed the slave that he knew things that he did not know that he knew.
There are things you know not by sensory perception and not by reason.
Let's say you have a clock. At 6:00 is all form and no content. Like logic. At 7:00 is Math. More content but not completely formal like Godel showed. 8:00 is Physics. There you deal with actual physical things that have content. 9:00 is Music. 10:00 is laws about people's relationships. 11:00 is mystic and metaphysical realities. 12:00 is all content and no form- God.
The content is the thing that is known by immediate non intuitive knowledge.
This immediate non intuitive knowledge is the way I think the Torah was received. And Reason was a step before that as the Rambam explains in the Guide. That is Reason perceives objective moral values. [Natural Law.] And immediate non intuitive knowledge knows the level after that.
The way I try to justify Torah is by immediate non intuitive knowledge. The way I try to go about explaining this is thus: You have an object in front of you you can feel and see and smell. How do you know the actual has anything to do with how you perceive it? You depend on empirical sensory perception to tell you things about the object. But let's take something you can't perceive directly. E.g. 2+2= 4. You don't have a physical way to test this. You depend on reason. But there are however areas that reason starts to contradict itself. Questions like, "Is the universe infinite?" "Is time infinite?" Unconditioned realities. Knowledge about unconditioned realities depends on immediate non intuitive knowledge. These are things like when Socrates asked the slave about some aspect of a triangle. The slave did not know. But Socrates by a skilled set of questions guided the slave until the slave knew the answer. So he showed the slave that he knew things that he did not know that he knew.
There are things you know not by sensory perception and not by reason.
Let's say you have a clock. At 6:00 is all form and no content. Like logic. At 7:00 is Math. More content but not completely formal like Godel showed. 8:00 is Physics. There you deal with actual physical things that have content. 9:00 is Music. 10:00 is laws about people's relationships. 11:00 is mystic and metaphysical realities. 12:00 is all content and no form- God.
The content is the thing that is known by immediate non intuitive knowledge.
This immediate non intuitive knowledge is the way I think the Torah was received. And Reason was a step before that as the Rambam explains in the Guide. That is Reason perceives objective moral values. [Natural Law.] And immediate non intuitive knowledge knows the level after that.