I have kept all these since my youth

The Greek that is translated as “I have kept all these since my youth” or similar in English is translated in Githabul as “When I was a boy I heard [obeyed] all these things, I have never been disobedient [not hearing] to what you have said.” It was not possible to say “I have done all these things,” since that would have meant he killed, committed adultery, stole, etc. (Source: B. Moore / G. Turner in Notes on Translation 1967, p. 1ff.)