3 John 1:8

8Weἡμεῖςthereforeοὖνoughtὀφείλομενto receiveὑπολαμβάνειντοὺςsuch [men]τοιούτους,so thatἵναfellow workersσυνεργοὶwe may beγινώμεθαin theτῇtruthἀληθείᾳ.

Therefore we ought to support such, so that we may be fellow workers in the truth.