Commentary for II Samuel 5:8

Whoever kills the Yevusi and touches [and destroys] the towers spire Whoever kills the Yevusi and has the strength to conquor the fortress.

And [the idols of] the lame. And destroys [the idols of] the lame and the blind which were abhorrent to Dovid.

Upon which they are saying. Upon which they are saying, "The blind one and the lame one," i.e., while the blind one and the lame one are here.

[Dovid] will not come Dovid will not come here. This is a shortened verse [because] it stated, "Whoever kills the Yevusi and touches [and destroys] the tower's spire" but [the verse] does not explain what happens to the person [who reaches the spire]. However, in Divrei Hayomim I, 11, 6) it explains, "Whoever kills the Yevusi first will be made a chief and a prince." Similar to this [we find]. "Therefore, whoever kills Kayin" (Bereishis 4, 14) and [that verse] does not explain what happens to the person [who kills Kayin] but from its context, it's understood that the language conveys rebuke and anger.⁵To whoever kills Kayin.

And touches [and destroys] the tower's spire. [This word] denotes the spire of a tower because that's where their idols were placed. [During] the days of Dovid, the generations of the oath had already passed.⁶Avimelech asked Avrohom to swear “that you will not deal falsely with me, with my son or my grandson.” These three generations had already passed when Dovid attacked the Yevusim in the fortress of Tzion.