What is the meaning of "Nishmetu bi'Ydei Sela Shofteihem"?
Rashi: Their judges and leaders departed from the good path, in the hand of the Yetzer ha'Ra and a heart as hard as rock.
Rashi citing Sifra: This refers to Moshe and Aharon, who died via the rock 1 .
Radak: He will cast them down from the rock. This curse applies to their judges, who are their leaders. They do not prevent them from going on bad paths, rather, they support them in this!
Malbim: Via Sela ha'Machlekos (refer to 141:5:3:3), their judges slipped away from me, and they could not harm me - "va'Yashav Sha'ul mi'Rdof Acharei David" (Shmuel I, 23:28). The rock divided them, and they could not come close to him.
Rashi: I cannot resolve the end of the verse with the beginning according to this. Perhaps we can resolve; these are like stubborn people - Moshe and Aharon, who died via the rock due to those people. Also they heard pleasant words, and did not repent.
What is the meaning of "v'Sham'u Amarai Ki Na'emu"?
Rashi: They heard the pleasant words that I speak in Hashem's Mitzvos, and they do not repent from their evil way. Also refer to 141:6:1:2*.
Radak: Perhaps when their leaders perish, they will be chastised and hear the rebuke that I rebuke them, and they will recognize that my words and rebuke are pleasant.
Malbim: At that time, when Sha'ul and his men surrounded David and his men, they heard David say these words.
