וַיַּרְא֙ מֶ֣לֶךְ מוֹאָ֔ב כִּֽי־חָזַ֥ק מִמֶּ֖נּוּ הַמִּלְחָמָ֑ה וַיִּקַּ֣ח א֠וֹתוֹ שְׁבַע־מֵא֨וֹת אִ֜ישׁ שֹׁ֣לֵֽף חֶ֗רֶב לְהַבְקִ֛יעַ אֶל־מֶ֥לֶךְ אֱד֖וֹם וְלֹ֥א יָכֹֽלוּ׃
And when the king of Moab saw that the battle was too sore for him, he took with him seven hundred men that drew sword, to break through unto the king of Edom; but they could not.
Rashi
and split it - Heb. וַיִִּבְקָעוּהָ, like (Isa. 7:6): “Let us go up to Judah and provoke it and breach its walls וְנַבְקִעֶנָה and so, (II Kings 3:26): “to break a way (לְהַבְקִיעַ)o the king of Edom.”