וַיִּשְׁלַ֣ח הֲדַדְעֶ֗זֶר וַיֹּצֵ֤א אֶת־אֲרָם֙ אֲשֶׁר֙ מֵעֵ֣בֶר הַנָּהָ֔ר וַיָּבֹ֖אוּ חֵילָ֑ם וְשׁוֹבַ֛ךְ שַׂר־צְבָ֥א הֲדַדְעֶ֖זֶר לִפְנֵיהֶֽם׃
Rashi on II Samuel
Shovach the commander of Hadarezer's aray. Because he was very mighty and powerful, he is mentioned by name.