When the wicked, even mine enemies and my foes, came upon me to eat up my flesh, they stumbled and fell. A special occasion seems to be intended, so that the LXX. have rightly, ἠσθένησαν καὶ ἔπεσαν.
Some unrecorded event in the war with Absalom before the final struggle, is probably alluded to. There is an emphasis on "mine enemies," which implies that the adversaries were not the foes of the country, but David's personal foes.