Thus Abimelech fought all that day against the city and took it; and having slain all the people therein, he destroyed the city and strewed salt upon it. Strewing the ruined city with salt, 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 a barren desert (see Job 39:6; Psa 107:34).