Arcana Coelestia #1065
1065. That 'these three were the sons of Noah' means these three kinds of doctrines which Churches in general possess has been stated just above. There are indeed countless less universal types of doctrines, but no further universal types exist. People who do not acknowledge charity, or faith, or external worship, are not part of any Church and are not therefore included since the Church is the subject here.
Acts of the Apostles 9:26-28
26
When Saul had come to Jerusalem, he tried to join himself to the disciples; but they were all afraid of him, not believing that he was a disciple.
27
But Barnabas took him, and brought him to the apostles, and declared to them how he had seen the Lord in the way, and that he had spoken to him, and how at Damascus he had preached boldly in the name of Jesus.
28
He was with them entering into Jerusalem,
