I Samuel 13:17 Midrash

וַיֵּצֵ֧א הַמַּשְׁחִ֛ית מִמַּחֲנֵ֥ה פְלִשְׁתִּ֖ים שְׁלֹשָׁ֣ה רָאשִׁ֑ים הָרֹ֨אשׁ אֶחָ֥ד יִפְנֶ֛ה אֶל־דֶּ֥רֶךְ עָפְרָ֖ה אֶל־אֶ֥רֶץ שׁוּעָֽל׃

And the spoilers came out of the camp of the Philistines in three companies: one company turned unto the way that leadeth to Ophrah, unto the land of Shual;