UNTEMPERED (רֵעֶה, H8291). A mixture of lime, whiting and water, for whitening walls, etc. The word is used in the KJV and ASV in
International Standard Bible Encyclopedia (1915)
Used of mortar in
Ezekiel uses the practice to typify the work of false prophets. They build up stories and make them plausible by an outward semblance to truth, while, in fact, they are flimsy, unreliable prophecies, resembling the walls described above, which can be broken down by a push or a heavy rain storm.
James A. Patch