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.)

(Referenties: Arcana Coelestia 3906, 4164)

4164. 'Jacob was incensed and wrangled with Laban' means the zeal of the natural. This is clear from the meaning of 'being incensed' or being angry, and as a result 'wrangling', as zeal; and from the representation of 'Jacob' as the good of the natural, dealt with already. The reason why 'being incensed', or being angry, and as a result 'wrangling', means zeal is that in heaven or among angels no anger exists, but instead of anger zeal. For anger is different from zeal, in that anger contains evil but zeal contains good. Or to put it another way, a person who is filled with anger intends evil to another with whom he is angry, whereas someone who is filled with zeal intends good to another for whom he is zealous. For this reason also a person who is filled with zeal is able to be good in an instant, and in what he is actually doing to be good towards others. Not so with a person who is filled with anger. Although in outward form zeal has a similar appearance to anger, in inward form it is altogether dissimilar.