פירוש על שופטים 5:4

Adonoy, when You went forth from Seir, This refers to the giving of Torah, as it is said, "…and shone forth from Seir to them."⁵Devarim, 33:2. Adonoy first offered the Torah to Eisov’s descendants at Seir. When they refused, He shone forth from there to Yisroel at Sinai. (Rashi to Devarim, there). Why is this relevant here? This is what Devorah said: "The Torah is severe when forsaken, but rewarding when adhered to, as it was given in awesomeness and power.⁶As indicated by the quaking of the earth and the dripping of heaven in v.4, and the dissolving of the mountain in v.5. Thus, the Yisroelites were handed over to their enemies for forsaking it; and, when they offered to engross themselves in it, they were saved." All this we learn from Targum Yonasan's rendition.⁷“Adonoy, the Torah which you have given to Yisroel: When they violate it, their enemies dominate them, and when they return to it, they are empowered over their antagonists”. (Targum Yonasan)

When You came forth from Seir: When you came forth in front of Israel, when they passed Mount Seir - because they then started to fight with Sichon and Og.

from the language of marching and walking