Brass and iron as in Isaiah 48:4 and Daniel 7:19 signify what is hard.

In Genesis 4:22, brass signifies natural good. (Arcana Coelestia 421)

In Numbers 21:9, this signifies the Lord's divine natural. (Apocalypse Revealed 49)

Brass also signifies the good in man's natural and the sensuous in the Lord. (Arcana Coelestia 197, Apocalypse Revealed 49, Apocalypse Explained 705)

(Odkazy: Apocalypse Explained 70)

As with common verbs in general, the meaning of “come” in the Bible is highly dependent on context – its meaning is determined largely by who is coming to whom and the circumstances of the action. In general, though, to come to someone - or to come to a place - represents the presence of one spiritual state with another, communication from one to the other and ultimately conjunction between them.