The internal situation in the Seleucid domains is so convoluted, and the rebel general and Seleucid pretender Diodotus so eager to gain allies, that he recognizes Hasmonean rule over Judea in exchange for little gain beyond a minor tribute of one hundred talents.

Simon Thassi in 142-141 forces the surrender of the Syrian garrison on the Akra, which apparently had remained loyal to Seleucid king Demetrius II Nicator, and the Jews pass a decree in Simon’s honor, granting the right of permanent incumbency to him and to his successors, until “an accredited prophet” should arise (the Hasmoneans claim no descent from the Davidic line, who had provided the hereditary kings of ancient Judah).

It is thus in Simon's reign that the rule of the priest-prince is transformed into a secular hereditary rule.

Diodotus recognizes this, granting Simon the right to issue his own coins.

Several Jewish armies now march against Diodotus' rival Demetrius and opposing cities.