Commentaries:
Robertson's Word Pictures (NT)
Partaketh in his evil works (koinwnei toiv ergoiv autou toiv ponhroiv). Associative instrumental case with koinwnei as in I Timothy 5:22, common verb from koinwnov (partner). It is to be borne in mind that the churches often met in private homes (Romans 16:5; Colossians 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 (Acts 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.
Other Robertson's Word Pictures (NT) entries containing 2 John 1:11:
1 Timothy 5:22
James 1:1
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.