“Siḥon did not allow Israel to pass within his border, and Siḥon gathered his entire people and came out toward Israel to the wilderness, and he came to Yahatz; and he fought against Israel” (Numbers 21:23). “Please, let us pass through your land” (Numbers 20:17) – just as he sent to the king of Edom that he would not harm him, so he sent to this one: “You will sell me food for silver […and water for silver]” (Deuteronomy 2:28) – typically, water is given for free, but we will pay its price.
“We will go on the king’s way […until we pass your border]” (Numbers 20:17). Elsewhere it is written: “Until I will cross [the Jordan]” (Deuteronomy 2:29). I will tell you a parable, to what is the matter comparable? It is to a watchman who took his wages to guard a vine or a fig tree.
One came and said to him: ‘Move from here, as I am harvesting the vineyard.’ He said to him: ‘I am sitting here and guarding only against you, and you are coming to harvest it?’ So, Siḥon took his payment from all the kings of the land of Canaan, and they would pay him taxes, as he would crown them as kings. He and Og were equal to them all, as it is stated: “Siḥon king of the Emorites, Og king of Bashan, and all the kingdoms of Canaan” (Psalms 135:11).
Israel said: ‘Let us pass through your land to conquer the kingdom.’ He said to them: ‘I am sitting here only to guard them from you’ – “Siḥon did not allow Israel to pass within his border.” “Siḥon gathered” – the Holy One blessed be He acted with forethought to deliver him into their hands with no trouble. It is written: “Siḥon king of the Emorites, who resides in Ḥeshbon” (Deuteronomy 1:4).
Were Ḥeshbon filled with gnats, no person would be able to conquer it; were Siḥon in a valley, no person could gain control over him; and it goes without saying when he is a mighty warrior and located in a fortified city. “Who resides in Ḥeshbon” – had he been residing in his cities, he and his multitudes, Israel would have exhausted themselves in the attempt to conquer each and every city. Instead, the Holy One blessed be He assembled them [the Emorites] before them to deliver them into their hands with no trouble.
Likewise it says: “See, I have begun delivering before you” (Deuteronomy 2:31) – they killed all his mighty warriors who had emerged to meet them, and returned against the women and children without exertion. That is why it is written: “Siḥon gathered.” “Israel took all these cities” (Numbers 21:25).