Nedarim6

1(Fol. 55) Samuel said again: "What does the passage (Num. 218). And from the wilderness of Mathanah to Nachaliel; and from Nachaliel to Bamoth, mean? This means that if a man make himself just as the wilderness upon which everybody treads, the Torah will be given to him as a gift. Since the Torah was given to him as a gift, the Torah will remain with him as an inheritance, as it is said and from Mathanah to Nachaliel. Since the Torah will remain with him as an inheritance, he will rise to distinction, as it is said and from Nachaliel to Bamoth. But if he exalt himself [with his learning] the Holy One, praised be He! will lower him, as it is said and from Bamoth to the valley; and if he reconsiders his conduct the Holy One, praised be He! will raise him again, as it is said (Is. 40, 4) Every valley shall be raised."