Salt was used generally in the food of man and animals (Job 6.6; Isa . 30.24). It was also a part of the Hebrew sacrificial system. Salt accompanied various offerings which were presented (Lev. 2.13). The salt used for the sacrifice was called “the salt of the covenant of your God,” which pictured that all impurity and hypocrisy was being repelled by the sacrifice. Salt strengthened food and preserved it from contamination and spoilage. In addition, salt was also used to fertilize soil or quicken the decomposition of dung (Matt. 5.13; Luke 14.35). In a figurative sense, salt was used of grace in the heart (Mark 9.50); of the wisdom of good sense in speech (Col. 4.6); and purification of the good and punishment of sinners (Mark 9.49).
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