וַֽיַּחֲזִ֜קוּ אִ֣ישׁ ׀ בְּרֹ֣אשׁ רֵעֵ֗הוּ וְחַרְבּוֹ֙ בְּצַ֣ד רֵעֵ֔הוּ וַֽיִּפְּל֖וּ יַחְדָּ֑ו וַיִּקְרָא֙ לַמָּק֣וֹם הַה֔וּא חֶלְקַ֥ת הַצֻּרִ֖ים אֲשֶׁ֥ר בְּגִבְעֽוֹן׃
And they caught every one his fellow by the head, and thrust his sword in his fellow’s side; so they fell down together; wherefore that place was called Helkath-hazzurim, which is in Gibeon.
Read kabbalistic (mystical) interpretation of II Samuel 2:16: and classical mystical sources.