Arcana Coelestia # 9290
9290. 'As I commanded you' means in keeping with the laws of order. This is clear from the meaning of 'commanding', when done by the Lord, as Divine Truth emanating from Him, for that Truth contains and teaches the commandments that have to do with life and with worship. This Divine Truth constitutes order itself in the heavens, and truths compose the laws of that order, 1728, 1919, 2258, 2447, 5703, 7995, 8700, 8988. From this it is evident that 'as I commanded you' means in keeping with the laws of order.
Harvest
The 'Harvest,' as mentioned in Mark 4:29, signifies the increase of the church in general and particular.
In Joel 3:13, it signifies the last state of the church before it has been devastated from all good and truth.
'A harvest' symbolizes the state of the church with respect to Divine truth. The reason is that a harvest yields the grain used to make bread, and grain and bread symbolize the church's goodness, which is achieved through truths.
(Odkazy: Apocalypse Revealed 645; Joel 3; Mark 4)