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ויצא סיחן. לֹא שָׁלַח בִּשְׁבִיל עוֹג לַעֲזֹר לוֹ, לְלַמֶּדְךָ שֶׁלֹּא הָיוּ צְרִיכִים זֶה לָזֶה: ויצא סיחן AND SIHON WENT FORTH — He did not send for Og to help him: this serves to teach you that they did not require one another's help, so mighty was each of them.