он был некогда негоден для тебя, а теперь годен тебе и мне; я возвращаю его;
Formerly he was useless to you, but now he has become useful both to you and to me.
(Formerly he was useless to you, but now he is indeed useful to you and to me.)
who formerly was useless to you, but now is useful both to you and to me.
Onesimusc hasn’t been of much use to you in the past, but now he is very useful to both of us.
Which in time past was to thee unprofitable, but now profitable to thee and to me:
who once was unprofitable to you, but now is profitable to you and to me.
once unserviceable to thee, but now serviceable to thee and to me: