In Zechariah 8:12, 'the vine shall give her fruit, and the ground her increase,' signifies that the spiritual affection of truth produces the good of charity, and the natural affection of good and truth produces the works of charity.

(Izinkomba: Apocalypse Explained 695)

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.