1Ki 10:28-29 (cf. 2Ch 1:16-17). “And (as for) the going out of horses from Egypt for Solomon, a company of king’s merchants fetched (horses) for a definite price.” This is the only possible explanation of the verse according to the Masoretic punctuation; but to obtain it, the first מקוה must be connected with סחרי in opposition to the accents, and the second must be pointed מקוה. This is the rendering adopted by Gesenius in his Thesaurus and Lexicon (ed. Dietr. s. v. מקוה). The meaning company or troop may certainly be justified from Gen 1:10; Exo 7:19, and Lev 11:36, where the word signifies an accumulation of water. Still there is something very strange not only in the application of the word both to a company of traders and also to a troop of horses, but also in the omission of סוּסים (horses) after the second מקוה. Hence the rendering of the lxx and Vulgate deserves attention, and may possibly be the one to be preferred (as Michaelis, Bertheau on Chron., and Movers assume). The translators of these versions have taken מקוה as the name of a place, ἐξ Ἐκουέ, or rather ἐκ Κουέ, de Coa.
According to this, the rendering would be: “And as for the going out of horses from Egypt and Koa (or Kawe) for Solomon, the king’s traders fetched them from Joa (Kawe) for a fixed price.” It is true that the situation of Koa cannot be more precisely defined; but there seems to be very little doubt that it was a place for the collection of customs upon the frontier of Egypt.