The Nahum Commentary or Pesher Nahum, labelled 4QpNah (Cave 4, Qumran, pesher, Nahum) was among the Dead Sea Scrolls in cave 4 of Qumran that was discovered in August 1952. The editio princeps of the text is to be found in DJD V., edited by John Allegro. The text is described thus: 'one of the "continuous pesharim" from Qumran, successive verses from the biblical Book of Nahum are interpreted as reflecting historical realities of the 1st century BCE."
The most clearly historical references in the text can be found in Fragments 3-4 Column 1, which cites Nahum 2:11b, "Where the lion goes to enter, there also goes the whelp..." and provides the commentary,
"[This refers to Deme]trius, king of Greece, who sought to enter Jerusalem through the counsel of the Flattery-Seekers; [but it never fell into the] power of the kings of Greece from Antiochus until the appearance of the rulers of the kittim...."
According to Larry R. Helyer (as well as to many other scholars), Demetrius in this text is Demetrius III Eucaerus (95-88 BCE), the Seleucid king who defeated Alexander Jannaeus in battle, but was forced to withdraw back to Syria. Accordingly, by "the Flattery-Seekers", the Pharisees were probably meant.