When we eat, our bodies break down the food and get from it both energy and materials for building and repairing the body. The process is similar on a symbolic level in the Bible. Food represents the desire for good and the insight that comes from that desire for good – goodness and understanding that come from the Lord. But to put them to use we have to take them in and make them our own – which is spiritual eating.

Hebrew uses the same words for jealous and zealous, though the concepts in English are somewhat different. 'Jealous' or 'zealous,' in Genesis 30:1, signifies an aspect of indignation. In 2 Samuel 21:2, zeal signifies a kind of fire, but within it is the love of doing good to others, or, when said of the Lord, the love of saving mankind. (Arcana Coelestia 5071)

In Isaiah 9:7, again the zeal of the Lord directed toward the salvation of mankind. (Arcana Coelestia 8875)

In Isaiah 59:17, the zeal (sometimes translated as fury, or jealous anger) of the Lord stands for the Divine Love from which the Lord fought the hells. (Apocalypse Explained 395. See also Apocalypse Revealed 216, and Conjugial Love 358.)

(Odkazy: Arcana Coelestia 3906, 4164)