וְקָרָ֨אתִי עָלָ֤יו לְכָל־הָרַי֙ חֶ֔רֶב נְאֻ֖ם אֲדֹנָ֣י יְהוִ֑ה חֶ֥רֶב אִ֖ישׁ בְּאָחִ֥יו תִּֽהְיֶֽה׃
主永恆者說：我必在我的眾山上召來刀劍攻擊他；各人的刀劍必攻擊自己的兄弟。
Rashi
And I will call the sword against him upon all My mountains for the sword to come upon them, against him. “And I will call” means, I will prepare. And what is the sword that I will call against him? Their own sword: “every man’s sword shall be against his brother.”