Arcana Coelestia#9727
9727. 'From bronze' means that this too must be formed from good. This is clear from the meaning of 'bronze' as external or natural good, dealt with in 425, 1551. Since 'the grating, the network' around the altar means the sensory perception belonging to the Lord's Divine Human, 9726 (end), the good that is meant here is the Divine Good of His Divine Love. Everything belonging to the Lord's Divine Human is formed from that Good.
Arcana Coelestia#1552
1552. 'And gold' means goods deriving from truths. This is clear from the meaning of 'gold' as celestial good, or the good of wisdom and love, as is clear from what has just been shown and also from what was shown previously in 113. That here they are goods deriving from truths follows from what was stated in the previous chapter about the Lord's joining intellectual truths to celestial things.