Law of Love
The "Law of Love" is a moral system that has as its basis the Biblical "golden rule" and that can be summarized as morally justifying that which is done "in love" and in expression usually was said as "God's only law is love".
The primary application of this moral code was in sexual relations, where this moral compass was seen as justifying traditonally taboo sexual practices under the mantra that everything but homosexuality was condoned by God, if done with love.
Excerpt from The Devil Hates Sex! -- But God loves it.
A comic version of this publication was made for children. See: Law of Love - True Komix.