In most cases, "mouth" in the Bible represents thought and logic, especially the kind of active, concrete thought that is connected with speech. The reason for this is pretty obvious, but it also holds when people, for instance, remove a stone from the mouth of a well, which represents gaining access to spiritual ideas. The mouth is used for eating as well as speaking, of course. In those circumstances, it represents our first, most external perception of a new spiritual idea or desire. This also makes sense, mirroring the way tasting food in the mouth gives us an instant impression of the quality of the food.

5655. ‘Descendendo descendimus ¹ in initio ad emendum cibum’: quod significet animum comparandi bonum veris, constat a significatione ‘descendere’ quod sit animus seu intentio, qui enim descendit aut confert se alicubi, est ex animo, hic ad comparandum bonum veris, quod significatur per ‘ad emendum cibum’; per ‘emere’ enim significatur comparare et appropriare, n. 5374, 5397, 5406, 5414, 5426, et per ‘cibum’ bonum veri, n. 5340, 5342, hic bonum veris quae repraesentantur per ‘filios Jacobi’ qui de se illa loquuntur.

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