421. Verse 22. And Zillah, she also bare Tubal-Cain, an instructor of every artificer in brass and iron; and the sister of Tubal-Cain was Naamah. By “Zillah” is signified, as previously stated, the mother of the natural things of the new church; by “Tubal-Cain, an instructor of every artificer in brass and iron” the doctrine of natural good and truth, “brass” denoting natural good, and “iron” natural truth. By “Naamah, the sister of “Tubal-Cain” is signified a similar church, or the doctrine of natural good and truth outside of that church.