<p>1:10 <em>If anyone comes to you and does not bring this teaching, do not welcome him into your house and give him no greeting</em>- The Judaist infiltrators were itinerant preachers, turning up at Christian house churches and wanting to teach. The whole of 1 Jn. 4 has warned about these people, with their false claims to Holy Spirit possession, who did not openly confess the Lord as Messiah and God's Son; see notes there. Kyria was to not let these people influence her house church.</p>