“Until about 100 years ago,” says author Mark
Kurlansky, “salt was one of the most sought-after commodities in human history.” Not so much today. The modern Western diet includes an average of 10 grams of sodium chloride a day, mostly from processed food,
and we are frequently urged to cut back on our intake.
Salt is cheap, and it’s everywhere.
Because of this, our own eating habits are probably
not the best place to start meditating on the meaning of the salt metaphor from
the Sermon on the Mount.