Salt

Salt held exceptional significance in biblical culture, serving simultaneously as a food preservative, a covenant symbol, a sacrificial requirement, and a metaphor for wisdom and purity. The Mosaic law required that all grain offerings be seasoned with salt, and the use of leaven and honey was forbidden (Lev. 2:13) — salt being the antithesis of corruption. The "covenant of salt" (brit melah) was an irrevocable and perpetual agreement: God's covenant with David (2 Chr. 13:5) and the Levitical priesthood (Num. 18:19) were both described in these terms. To eat salt with someone was to share hospitality and enter a binding relationship of mutual loyalty (Ezra 4:14; Acts 1:4 LXX). Salt's destructive power when applied to land is reflected in the sowing of salt over Shechem (Judg. 9:45). Jesus called his disciples "the salt of the earth" — agents of preservation and flavor in the world (Matt. 5:13; Mark 9:50). Paul exhorts speech to be "seasoned with salt" — gracious and apt (Col. 4:6).