And the king made silver to be in Jerusalem as stones
By the vast quantity he received from Tarshish; this is an hyperbolical expression:
and cedars made he to be as the sycamore trees that are the vale for
not by the growth of them, but by the importation of them from the dominion of Hiram; this is said in the same figurative way; of the sycamore trees, Rauwolff says F7, they are what the Moors and Arabians calls "mumeitz"; which he describes to be as large and as high as white mulberry trees, and having almost the same leaves, but rounder, and their fruit not unlike our figs, only sweeter, and no little seeds within, and not so good; and are therefore not esteemed, and are commonly sold to the poorer sort, and that they grow in all fields and grounds; of which (See Gill on Amos 7:14).
F7 Travels, par. 1. c. 4. p. 37.