Numbers 33:1

These are the journeys. Why were these journeys recorded? To make the Omnipresent’s benevolence known. For, although He decreed to move them about and cause them to wander in the wilderness, do not say that they wandered and were moved about from journey to journey all forty years, and had no rest — for there are only forty two journeys here. Subtract fourteen, all of which took place during the first year, before the decree, from their journey from Ra’meses until they reached Rismah, from where the spies were dispatched, as it is said, “after, the people journeyed from Chatzeros, etc. Send, for yourself, men, etc.,” and here it says, “they journeyed from Chatzeros and camped at Rismah,” you learn that it was in the desert of Paran. Exclude, further, from there, eight journeys which took place after Aharon’s death, from Mount Hor to the plains of Moav, during the fortieth year, it is found that throughout the thirty eight years, they took only twenty journeys. This is from R’ Moshe [Hadarshan]’s commentary. R’ Tanchuma expounds the matter differently: This is compared to a king whose son was ill, and he brought him to a distant place for treatment. When they returned, the father began enumerating all the journeys. He said to him, ”Here, we slept; here, we were chilled; here, your head ached, etc.’

These are the journeys of the Beni Israel who came out from Mizraim by their hosts, after the miracles had been wrought for them by the hand of Mosheh and Aharon.

THESE ARE THE JOURNEYS. After the vengeance [executed] upon Midian, concerning which the Holy One, blessed be He, told Moses, afterwards shalt thou be gathered unto thy people, and after Moses had apportioned the land of Sihon and Og [to the tribes of Reuben, Gad, and half of the tribe of Menasheh] and they had built the [previously] mentioned cities,, 32:34-38. he set his mind to write down [the various stages of] the journeyings [in the desert]. His intention in so doing was to inform [future generations] of the loving kindnesses of the Holy One, blessed be He, towards them, for even though He had decreed upon them that they had to move about and wander around in the wilderness, you should not think that they were continually wandering and moving around from place to place without any rest; for throughout all this long [period of] time they only went on forty-two journeys as the Rabbi — Rashi — wrote, [citing] the words of Rabbi Moshe the Preacher., Note 146.
And the Rabbi [Moshe ben Maimon] added in the Moreh Nebuchim another [explanation as to the] benefit [that we derive] from knowledge [of these stages], saying: “There was a very great necessity in mentioning the [stages of the] journeyings. For [although] the miracles and wonders that were done were [recognized as] true ones by all who saw them, in later times these events would be matters of hearsay, and those who hear about them [then] might deny them altogether. Now among the greatest miracles and wonders [related] in the Torah is Israel’s survival in the wilderness for forty years, and finding the manna every day, although these places [where they stayed] are very far from cultivated settlements, and are not natural habitat for human beings, not being a place of seed, or of figs, or of vines, or of pomegranates, and the Torah states, Ye have not eaten bread, neither have ye drunk wine or strong drink. All these [matters] are signs of events of a miraculous nature which were seen by [the human] eye. But the Creator blessed be He, knew that these wonders will be subject to the process which occurs to [all] historical events — that those who hear them will not believe them; and they will think [about these events] that the sojourn of the Israelites in the wilderness was [in a place] near the cultivated settlement, where people can live there, such as the deserts in which the Arabs live today, or [that they stayed in] places where there was plowing and harvesting, or …

אלה מסעי, the Torah reviews all the journeys in order to list all the locations were they camped.

אלה מסעי, G’d wanted all the journeys to be recorded in order to compliment the Jewish people who had followed him blindly through the desert where nothing grew, so that as a reward for their faith they would deserve to enter and inherit the land of Israel.