וַיִּסְע֖וּ מִסֻּכֹּ֑ת וַיַּחֲנ֣וּ בְאֵתָ֔ם בִּקְצֵ֖ה הַמִּדְבָּֽר׃
And they took their journey from Succoth, and encamped in Etham, in the edge of the wilderness.
Rashi on Exodus
ויסעו מסכת AND THEY JOURNEYED FROM SUCCOTH — on the second day, for on the first day they had come from Rameses to Succoth (Exodus 12:37).
Mekhilta d'Rabbi Yishmael
Rav Hirsch on Torah
V. 20. קצה ist jeder äußerste Punkt eines räumlichen Gegenstandes, somit Anfang sowohl als Ende.