The loins, as in Ezekiel 29:7, signify the marriage of truth and good. In general, loins signify love, and when referring to the Lord, divine love. They can also signify the interiors of conjugial love. In Isaiah 11:5, they signify people in the divine good of love, and reins signify people in love towards their neighbor.

(参考: Apocalypse Revealed 830)

6656. 'Perhaps they will multiply, and it will be when wars occur' means superior strength if they increase. This is clear from the meaning of 'multiplying' as increasing in regard to truths, dealt with in 43, 55, 913, 983, 2846, 2847; and from the meaning of 'wars' as conflicts involving truths and falsities, which are spiritual conflicts, dealt with in 1664, 2686. And since the words that follow are 'they also will join themselves to our enemies', superior strength in those conflicts is meant.