'Grass' is natural truth, and 'flower of the field' is spiritual truth, as in Isaiah 40:5, 6. Green grass, in the Word, signifies the good and truth of the church, and of faith, which first springs up in the natural man. This is also signified by 'herb in the field.' Grass and the pulse of the herb, as in Psalm 32:2, signify what is most vile. Grass signifies science from a spiritual origin, or that by which spiritual truth is confirmed. 'Reeds and rushes' signify science from a sensory origin, or the things which confirm the fallacies of the senses, as in Isaiah 25:7. This science, considered in itself, is only a part of the lowest natural degree, which may be justly called material and bodily, in which there is little or no life. Green grass also signifies that which is alive with man. 'Grass burnt up' signifies the things which are dead in him. Grass signifies the scientific principle. Just as green grass serves animals for support, spiritual truth serves men for spiritual nourishment.

(Mga Sanggunian: Apocalypse Explained 507)

7957. 'Both you and the children of Israel' means together with their truth from God, and with truth that leads to good and truth which springs from good. This is clear from the representation of 'Moses' as the truth from God, dealt with just above in 7955; and from the representation of 'the children of Israel' as those belonging to the spiritual Church, dealt with often, thus those guided by truth that leads to good and by truth which springs from good. For the spiritual Church differs from the celestial Church in that it is brought to the good of charity by means of the truth of faith, which being so it considers truth to be the essential thing. Initial contact with that good for them is effected through truth, for truth teaches them what they ought to do; and when they do that truth it is called good. This good, once they have been brought in contact with it, becomes the standpoint from which they see truths, that show them further how to act. From this it is evident that whether you say those belonging to the spiritual Church or those guided by truth through Which good is done, and by truth seen from the standpoint of good, it amounts to the same thing.