The natron of the moderns, not what is now called nitre, which is saltpetre. As vinegar upon natron or alkali (which would effervesce and evaporate) so is the unsuitableness of singing mirthful songs to a heavy heart. Proverbs 25:20 . It is a mineral alkali, and with oil is made into soap. Jeremiah 2:22 .
Originally published with the title A New and Concise Bible Dictionary by George Morrish (London), the Morrish Bible Dictionary is more than a dictionary of Bible words.Wikipedia
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