Torah is essentially Divine revelation, and learning Torah is a way of encountering G-dliness. Humility can be defined as a correct apprehension of one s place in the world. Therefore the Torah and the humble person are the perfect match. Moshe Rabbeinu was that person. He explains a striking comment by the Sages.
Arrogant people are limited, because they see themselves as being at a certain level of greatness.
The humble person is without limits, boundless, because he does not see himself as anything at all. He is therefore fitting to be the one to be the recipient of the boundless Torah. Just as the Torah is able to spread out, so can the humble person. Just as the Torah is open to and connected to all people, so the humble person is open to and connected to all people. The two are therefore fitting.