SALT AND THE DEAD SEA.

Salt is a necessity of life, as a mineral it was used extensively since ancient times as seasoning, preservative, disinfectant, ceremonial offerings, unit of exchange, etc.
The Scripture contains numerous references to salt. In various contexts, it is used metaphorically to signify permanence, loyalty, fidelity, usefulness, value, and purification. All of them thought to be eternal characteristics of the spiritual heart.
The Hebrew people harvested salt by pouring salt water into pits and letting the water evaporate until only salt was left. In 2 Chronicles 13, King Abijah referred to God's Covenant Promise to David that He will not lack a man to seat on Israel's throne as a Salt Covenant -that is a Covenant that can never be broken. Salt, in this case, is a sacred blessing because of the fact that it is a necessity of life.
The fate of Lot's wife, being turned into a pillar of salt, is reflected as a punishment for disobeying the angels' warning, after she looked back at Sodom (Genesis 19). She was deemed unworthy to be saved. A pillar of salt named "Lot's wife" is located near the Dead Sea at Mount Sodom in Israel.
The main source of salt in Scriptural times was the area of the Dead Sea.
The Jordan Rift Valley also called the Syro-African Depression, is geographically, an elongated depression located in modern-day Israel, Jordan, and Palestine.
The region includes the entire length of the Jordan River -from its sources, through the Hula Valley, the Korazim block, the Sea of Galilee, the Lower Jordan Valley, all the way to the Dead Sea- and then continues through the Arabian depression, the Gulf of Aqaba whose shore-lines it incorporates, until finally reaching the Red Sea proper at the Straits of Tiran, the narrow sea passages between the Sinai and Arabian peninsulas.
The Rift was formed many millions of years ago when the Arabian Plate moved Northward and then Eastward away from Africa. Later, the land between the Mediterranean and the Rift rose so that the sea water stopped flooding the area. Thus, the long lagoon became a landlocked Lake.
The Dead Sea now is receding at an alarming rate because of diversion of incoming water from the Jordan River to the North.  Multiples canals and pipelines proposed to reduce its recession, instead of helping, it had begun causing mayor problems. The drop rate now is 1 meter / 3 feet per year. As the water level decreases, the characteristics of the Sea and surrounding region will substantially change.
The Dead Sea, a salt Lake bordered by the Jordan to the East and Israel and Palestine to the West, lies in the Jordan Rift Valley, and its main tributary is the Jordan River. The face of the ridge is constantly changing as weather interacts with the rock salt,
The Lake surface and shores are 430.5 meters / 1,412 feet below sea level. Being the Earth's lowest elevation on land, the Lake is 304 meters / 997 feet deep, the deepest hyper-saline Lake in the World. And with a salinity of 342g/kg, or 34.2% (2011), it is 9.6 times as salty as the ocean and one of the World's saltiest bodies of Water. Being 50 kilometers / 31 miles long and 15 kilometers / 9 miles wide at its widest point, the Lake's salinity makes for a harsh environment in which plants and animals cannot flourish. The density of the water is 1.24 kg/litre, which makes swimming similar to floating.
In Ezekiel 47, is another Scriptural example that highlights that life in the Spirit is being replaced in our bodies made of salty water in the same way Fresh Water enters into the Salty Water of the Dead Sea and gradually replaces it into Fresh Water that brings life :
The Scripture says, "The man led me back to 'the entrance of the Temple.' Water was coming out from 'under the entrance' and flowing East, the direction the Temple faced. Water was flowing down from 'under the South part' of the Temple 'past the South side of the altar.'"  (Ezekiel 47: 1)
"The man then took me 'out of the Temple area' by way of the 'North Gate' and led me around 'to the Gate that faces East.' A small Stream of Water was flowing out at the 'South side of the Gate.' With his measuring rod the man measured 560 yards downstream to the East and told me to wade through the stream there. The water came only to my ankles. Then he measured another 560 yards, and the water came up to my knees. Another 560 yards farther down, the water was up to my waist. He measured 560 yards more, and there the Stream was so deep I could not wade through it. It was too deep to cross except by swimming. He said to me, "Mortal man, note all this carefully." (Ezekiel 47: 2-6)
Then the man took me back to the Riverbank, and when I got there, I saw that 'there were very many trees' on each bank. He said to me, "This Water flows through the Land 'to the East' and 'down into the Jordan Valley' and 'to the Dead Sea.'    When the Water flows into the Dead Sea, it replaces the Salt Water of that sea with Fresh Water. Wherever the Stream flows, there will be all kinds of animals and fish. The Stream will make the Water of the Dead Sea fresh, and wherever it flows, it will bring Life.
From the Springs of Engedi all the way to the Springs of Eneglaim, there will be fishermen on the shore of the Sea, and they will spread out their nets there to dry. There will be as many different kinds of fish there as there are in the Mediterranean Sea. But the Water in the marshes and ponds along the shore will not be made fresh. They will remain there as a Source of Salt. (Ezekiel 47: 7-11)
On each bank of the Stream all kinds of trees will grow to provide food. Their leaves will never wither, and they will never stop bearing fruit. They will have fresh fruit every month, because they are watered by the Stream that flows 'from the Temple.' The trees will provide food and their leaves will be used for healing people.  (Ezekiel 47: 12)