NET
19 In addition, this brother has also been chosen by the churches as our traveling companion as we administer this generous gift to the glory of the Lord himself and to show our readiness to help.
Darby
19 and not only [so], but [is] also chosen by the assemblies as our fellow-traveller with this grace, ministered by us to the glory of the Lord himself, and [a witness of] our readiness;
KJV
19 And not [that] only, but who was also chosen of the churches to travel with us with this grace, which is administered by us to the glory of the same Lord, and [declaration of] your ready mind: