Isaiah 19:7

The paper reeds by the brooks, by the mouth of the brooks, and every thing sown by the brooks, shall wither, be driven away, and be no [more].

Ver. 7. The paper reeds by the brooks,] i.e., By the streams of Nile; for where this river arriveth not, is nothing but a whitish sand, bearing no grass but two little weeds called suhit and gazul, which, burnt to ashes, maketh the finest crystal glasses.

And everything sown by the brooks.] As far as Nile overflows is a black mould, so fruitful as they do but throw in the seed and have four rich harvests in less than four months.