וַיִּשְׁלַ֤ח יִשְׂרָאֵל֙ מַלְאָכִ֔ים אֶל־סִיח֥וֹן מֶֽלֶךְ־הָאֱמֹרִ֖י מֶ֣לֶךְ חֶשְׁבּ֑וֹן וַיֹּ֤אמֶר לוֹ֙ יִשְׂרָאֵ֔ל נַעְבְּרָה־נָּ֥א בְאַרְצְךָ֖ עַד־מְקוֹמִֽי׃
以色列又派使者去見亞摩利人的王西宏，就是希實本的王。以色列對他說：«求你容我們從你的地經過，到我的地方去。»
Siftei Chakhamim
With the land of Moav. Subsequently it is written (Shoftim 11:19), “Then Yisroel sent messengers to Sichon…” implying that initially their journey around was from west to the east, at the southern side of Edom and Moav. Then, when they reached the southeastern edge, they turned northward to go around the eastern border of Moav. Once they had gone around the eastern border, it is written afterwards, “Then Yisroel sent…” for they had reached the land of Sichon and Og.