{Partaketh in his evil works} (koin(936e)ei tois ergois autou
tois pon(8872)ois). Associative instrumental case with koin(936e)ei as
in  1Ti 5:22 , common verb from koin(936e)os (partner). It is to be
borne in mind that the churches often met in private homes ( Ro
16:5  Col 4:15 ), and if these travelling deceivers were allowed
to spread their doctrines in these homes and then sent on with
endorsement as Apollos was from Ephesus to Corinth ( Ac 18:27 ),
there was no way of escaping responsibility for the harm wrought
by these propagandists of evil. It is not a case of mere
hospitality to strangers.