Arcana Coelestia # 8583
8583. 'And water will come out of it' means that truths of faith will flow from Him. This is clear from the meaning of 'the rock', from which the water will come out, as the Lord in respect of faith, dealt with just above in 8581; and from the meaning of 'water' as the truths of faith, dealt with in 2702, 3058, 3424, 4976, 5668, 8568.
Arcana Coelestia # 5668
5668. 'And gave them water' means a general influx of truth from the internal. This is clear from the meaning of 'water' as truth, 2702, 3058, 3414, 4976, in this case truth in general. This is why 'giving water' means a general influx of truth; and the reason it comes from the internal is that this took place in Joseph's house, 5667. A general influx of truth is enlightenment that makes it possible for truth to be discerned and understood. This enlightenment is provided by the light of heaven which flows from the Lord, a light which is nothing else than Divine Truth, 2776, 3138, 3167, 3195, 3222, 3339, 3485, 3636, 3643, 3993, 4302, 4413, 4415, 5400.