Light From Flame
During the Sermon on the Mount, Jesus told His disciples they were the salt of the earth. He alluded to the purpose of salt for seasoning food to improve flavour, for flavourless salt is good for nothing. Clearly tasteless salt lacked the chemical properties of real salt, as genuine sodium chloride always retains its savour. Salt was relied upon to preserve meat and flavour foods, and "salt" that lacked flavour was proved to be a worthless substitute. Jesus continued in the same vein in verses that followed in Matthew 5:14-16 : " You are the light of the world. A city that is set on a hill cannot be hidden. 15 Nor do they light a lamp and put it under a basket, but on a lampstand, and it gives light to all who are in the house. 16 Let your light so shine before men, that they may see your good works and glorify your Father in heaven ." A city built on a hill would be visible because the man-made structure stood out from s...