salt in the NT cf. Mark 9:50; Col 4:6; in both cases it symbolizes a beneficial influence on human relationships, but the precise nature of the symbolism is not certain. The two most significant uses of salt in the ancient world were for flavoring and for the preservation of food,9 and either or both of those uses would provide an appropriate sense here: the disciples are to provide flavor to the world they live in (perhaps with the thought of salt as wisdom, as in Col 4:6 and in some rabbinic sayings),
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