all their pooles of water] We must not thinke that Moses went particularly to every poole, to stretch his Rod over it, but that having stretched his Rod towards the River, he afterwards did the like over some ponds or pooles, or gathering of water, in the name of all of the like kind: or he might (stretching out the Rod) make mention, how farre the Curse should reach; and it is like, it was rather upon the fresh waters, that were potable, then upon the salt; other liquors seeme to be free from this plague, especially milke, for that is not properly comprehended under the name of water.