I Chronicles 11:39 Kabbalah

צֶ֖לֶק הָעַמּוֹנִ֑י נַחְרַי֙ הַבֵּ֣רֹתִ֔י נֹשֵׂ֕א כְּלֵ֖י יוֹאָ֥ב בֶּן־צְרוּיָֽה׃ (ס)

Zelek the Ammonite, Nahrai the Berothite, the armour-bearer of Joab the son of Zeruiah;

Read kabbalistic (mystical) interpretation of I Chronicles 11:39: and classical mystical sources.