When Gaal saw the people, he said to Zebul, Behold, there come people down from the tops of the mountains. Zebul said to him, You see the shadow of the mountains as if they were men.
"Strewing the ruined city with salt [Judges 9:45], which only occurs here, was a symbolical act, signifying that the city was to be turned for ever into a barren salt desert. Salt ground is barren desert (Job xxxix. 6, [Psalms] cvii. 34)." [Note: Keil and Delitzsch, p. 370.] 