ואשלח מלאכים ממדבר קדמות אל סיחון מלך חשבון דברי שלום לאמר
Rashi quotes the thought that went through Moshe Rabbeinu’s mind. “Although Hashem did not command me to reach out to Sichon, I nonetheless derived a lesson from Hashem Himself when He prepared to give the Torah to Klal Yisrael.” He first approached Eisav and Yishmael and gave them the right of first refusal. Hashem was clear that they would not accept the Torah, but, for the sake of peace, He offered it to them. Thus, I did the same by offering Sichon a peaceful resolution to allow us through. Sichon, of course, acted in the manner that was expected of…
