Rashi
Jewish
1040–1105
“Not one person sharpened. This is an abbreviated verse. No sharp [tongued] person, sharpened his tongue against a single person of Bnei Yisroel. חָרֶץ indicates the speech of the tongue. Similarly, “A dog will not sharpen its tongue.” Similarly “Then you will utter a sharp word.” You will call, you will cry out a battle shout.”