Like the heath in the desert. — The word rendered heath is, literally, bare or naked, and as such is translated by “destitute” in Psalms 102:17. That meaning has accordingly been given to it here by some recent commentators. No picture of desolation could be more complete than that of a man utterly destitute, yet inhabiting the “parched places of the wilderness.” All the older versions, however, including the Targum, and some of the best modern (e.g. Ewald), take the word as describing the “heath” or other like shrubs standing alone in a barren land. A like word with the same meaning is found in Jeremiah 48:6, and stands in Arabic for the “juniper.” Both views are tenable, but the latter, as being a bolder similitude, and balancing the comparison to a “tree planted by the waters” in Jeremiah 17:8, is more after the manner of a poet-prophet. There is something weak in saying “A man shall be like a destitute man.” The word rendered “desert” (arabah) is applied specially to the Jordan valley (sometimes, indeed, to its more fertile parts), and its connection here with the “salt land” points to the wild, barren land of the Jordan as it flows into the Dead Sea (Deuteronomy 29:23).
Shall not see when good cometh. — The words describe the yearning that has been so often disappointed that at last, when the brighter day dawns, it is blind to the signs of its approach. It comes too late, as rain falls too late on the dead or withered heath.