At Sinai, B’nei Yisrael (the Children of Israel) encamped as one. To the eyes of the nations at the time, this massive throng of people, trekking through the desert, may have appeared to be a behemoth, compared to oxen that tear out the roots of the grass they eat, thus completely destroying a field, without its possibility of growing back; yet, from the vantage point of heaven, the people were a divinely chosen nation, being guided into their destiny, via the many tests and trials in the wilderness.
Thus, from an external perspective, based only upon outward appearances, the two-million-person multitude may have appeared somewhat disordered, and haphazard in its wandering through the wilderness. Yet, not so, from H’Shem’s perspective, nor from the understanding of Moses, the leader of this people.
The continual march of the Jewish people throughout history as well, has not been haphazard. The prophets foresaw our destiny, and paved the way for our understanding, so that we know that our return to Israel had a lot more to do with divine intention, than from political maneuverings. On Shavuot, we recall the giving of the Torah at Sinai, the same commandments that are in effect today, as our national constitution, so to speak, as a nation.