Sifri: To teach us that someone who sinned be'Oneis, be'Shogeg or who was tricked into sinning is Patur. ¹

Rashi and Seforno: It means 'to the gate where he worshipped', ¹ (and where he anticipated a salvation, thus demonstrating the powerlessness of the god that he worshipped - Seforno). ²

Targum Yonasan: It means 'To the gate of Beis-Din' (where he was sentenced to death). ³

Sanhedrin, 16b: They preclude an Ir ha'Nidachas, where the entire community sinned, from the Din of "She'arech" - to teach us that they are not judged by a Beis-Din of twenty-three, but by the Beis-Din ha'Gadol of seventy-one. ¹

Rashi 9in Sanhedrin, 15b): It means 'to the Beis-Din in your town'.

Kesuvos, 45b: To teach us that regardung a town whose inhabitants are mainly Nochrim, the sinner is not stoned by the gate where he worshipped, but by the gate where he was sentenced to death. ¹

Sanhedrin, 16b: It implies that one only takes an individual to the gate (the town) where he worshipped, but if an entire town worshipped Avodah Zarah, it is judges by the Sanhedrin ha'Gadol and killed by the gate where they worshipped. ¹

Seforno: Because we might otherwise have thought that she acted out of stupidity, and not out of conviction, in which case it is unnecessary to put her to death by the gate where she worshipped ¹

Sifri: It teaches us that if the sinner dies after one heavy stone has been dropped on him, that is sufficient, ¹ but that, if he doesn't, then one drops more stones on him until he dies. ²