יִתֵּ֧ן לְמַכֵּ֛הוּ לֶ֖חִי יִשְׂבַּ֥ע בְּחֶרְפָּֽה׃ (ס)
Niechaj nadstawi lice uderzającemu go, niechaj nasyca się hańbą.
Rashi
for You have struck all my enemies on the cheek This is a disgraceful blow, as you say (Lam. 3: 30): “Let him offer his cheek to the smiter”; (Micah 4:14), “with a rod they strike...on the cheek.” According to the Midrash Aggadah (Mid. Ps. 3:7), this is a sickness of the mouth, [choking, croup] as you say (II Sam. 17:23): “And he [Ahithophel] gave charge to his household and he strangled himself.