27 A correlative καί (kai, “both you”) is found in a few witnesses (א*,c F G 33 104 ), perhaps either to underscore the value of Onesimus or in imitation of the νυνὶ δὲ καί (nuni de kai) in v. 9. The lack of καί is read by most witnesses, including א2 A C D 0278 1739 1881 𝔐 it. Although a decision is difficult, the shorter reading has a slight edge in both internal and external evidence. places the καί in brackets, indicating some doubts as to its authenticity.

In other versions

(Formerly he was useless to you, but now he is indeed useful to you and to me.)

Formerly he was useless to you, but now he has become useful both to you and to me.

Once he was useless to you, but now he is useful both to you and to me.

Onesimus hasn’t been of much use to you in the past, but now he is very useful to both of us.

Once he was useless to you, but now he is useful to you and to me,

which in time past was to thee unprofitable, but now profitable to thee and to me:

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