Paul tells the Philippians that “it is God who is at work in you, both to will and to work on behalf of his good pleasure (ὑπὲρ τῆς εὐδοκίας)” (v 13).
My wife Robin came home the other day dumbfounded, having heard the lyrics of a song that says God is working for “your good pleasure.”
True, there is no explicit pronoun present, neither αὐτοῦ or σου, so where does the “his” come from? The τῆς. ὁ is way more than the definite article, and one of its other functions is to perform the work of a possessive.