Exo 25:5 מאדּמים אלים ערת rams’ skins reddened, i.e., dyed red. תּחשׁ is either the seal, phoca, or else, as this is not known to exist in the Arabian Gulf, the φῶκος = φώκαινα of the ancients, as Knobel supposes, or κῆτος θαλάσσιον ὅμοιον δελφῖνι, the sea-cow (Manati, Halicora), which is found in the Red Sea, and has a skin that is admirably adapted for sandals. Hesychius supposes it to have been the latter, which is probably the same as the large fish Tûn or Atûm, that is caught in the Red Sea, and belongs to the same species as the Halicora (Robinson, Pal. i. p. 170); as its skin is also used by the Bedouin Arabs for making sandals (Burckhardt, Syr. p. 861). In the Manati the upper skin differs from the under; the former being larger, thicker, and coarser than the latter, which is only two lines in thickness and very tough, so that the skin would be well adapted either for the thick covering of tents or for the finer kinds of ornamental sandals (Eze 16:10). שׁטּים עצי acacia-wood. שׁטּה for שׁנטה, the true acacia (acacia vera), which grows in Egypt and on the Arabian peninsula into a tree of the size of a nut-tree, or even larger; the only tree in Arabia deserta from which planks could be cut, and the wood of which is very light and yet very durable.