Arcana Coelestia#7716
7716. 'No man could see his brother' means that they could not perceive the truth of any good. This is clear from the meaning of 'seeing' as understanding and perceiving, dealt with in 2150, 2325, 2807, 3764, 3863, 4407-4421, 4567, 4723, 5400; from the meaning of 'man' as truth, dealt with in 3134; and from the meaning of 'brother' as good, dealt with in 2360, 3303, 3803, 3815, 4121, 5409, 5686, 5692, 6756, and a man linked to his brother as the good of truth, 3459. From these meanings it is evident that 'no man could see his brother' means that they could not perceive the truth of any good.
Arcana Coelestia#5512
5512. 'And took us for men spying out the land' means that it saw the truths known to the Church as ones existing there for the sake of gain. This is clear from the representation of the sons of Jacob, to whom 'us' refers here, as the truths known to the Church that were present in the natural, dealt with in 5403, 5419, 5427, 5458; and from the meaning of 'spies' or 'men spying out the land' as people interested in the truths known to the Church solely for the sake of gain, dealt with in 5432.