Likutei Sichos – Vol 23 p 62 ff1) The idea of אין וקדם ומאוחר בסדר התורה is derived form here. The Rebbe explains this nuance and the very beginning of the Sicha. The Korban Pesach brought in 5749 that is placed in Parshas Biha’alosecha rather than in the beginning of the Chumash Bamidbar.It is not...