and there
is a type or image of just and also of unjust zeal; but we will explain
these distinctions in the following series of articles: I. _Zeal,
considered in itself, is like the ardent fire, of love._ II. _The
burning or flame of that love, which is zeal, is a spiritual burning or
flame, arising from an infestation and assault of the love._ III. _The
quality of a man's (homo) zeal is according to the quality of his love;
thus it differs according as the love is good or evil._ IV. _The zeal of
a good love and the zeal of an evil love are alike in externals, but
altogether unlike in internals._ V. _The zeal of a good love in its
internals contains a hidden store of love and friendship; but the zeal
of an evil love in its internals contains a hidden store of hatred and
revenge._ VI. _The zeal of conjugial love is called jealousy._ VII.
_Jealousy is like an ardent fire against those who infest love exercised
towards a married partner, and like a terrible fear for the loss of that
love._ VIII. _There is spiritual jealousy with monogamists, and natural
with polygamists._ IX. _Jealousy with those married partners who
tenderly love each other, is a just grief grounded in sound reason lest
conjugial love should be divided, and should thereby perish._ X.
_Jealousy with married partners who do not love each other, is grounded
in several causes: arising in some instances from various mental
weaknesses._ XI. _In some instances there is not any jealousy; and this
also from various causes._ XII. _There is a jealousy also in regard to
concubines, but not such as in regard to wives._ XIII. _Jealousy
likewise exists among beasts and birds._ XIV. _The jealousy of men and
husbands is different from that of women and wives._ We proceed to an
explanation of the above articles.

358. I. ZEAL, CONSIDERED IN ITSELF, IS LIKE THE ARDENT FIRE OF LOVE,
What jealousy is cannot be known, unless it be known what zeal is; for
jealousy is the zeal of conjugial love. The reason why zeal is like the
ardent fire of love is, because zeal is of love, which is spiritual
heat, and this in its origin is like fire. In regard to the first
position, it is well known that zeal is of love: nothing else is meant
by being zealous, and acting from zeal, than acting from the force of
love: but since when it exists, it appears not as love, but as
unfriendly and hostile, offended at and fighting against him who hurts
the love, therefore it may also be called the defe