{When he was grown up} (megas genomenos). "Having become
great" (from  Ex 2:11 ). {Refused} ((8872)nesato). First aorist
middle indicative of arneomai, to deny, to refuse. He was of
age and made his choice not from ignorance. {Son} (huios).
Predicate nominative with legesthai (to be spoken of, present
passive infinitive, of leg(935c)).