Im not sure , but my guess is that the themes of love and evil overlap with ethical justification and spirtual direction.
For example. For Jesus love depends more on the nature of the lover "Jesus replied, You must love the lord your God with all your heart , all your sould and all your mind... Thou shalt love thy neighbour as thyself" Mat 22:37,39
So this comments on christian ethics and the importance of Love in the christian community in spiritual direction.
"Spend your wealth for the cause of Allah, and be not cast by your own hand to ruin; and do good. Lo! Allah loveth the beneficent." Surat al baqara
I guess this scripture in islam could be used to justify Zakat or Almsgiving in the Islamic community. Zakat I believe is essential to the community as it provides funds for the poor.
also in christian scriptures "For the Love of Money is the root of all evil" 1 tim 6:10 ... Amish communities use this verse to justify secluded societies that are not reliant on money.
Hope that helps. My guess is that ethical justification and spiritual guidence goes beyond the themes of Love and evil though .. not sure ...