“There is only one distinction that need be made: what comes of love and what comes of fear. All expressions of love are of maximal benefit to everyone. While you may, for a while yet, not see that all that are not expressions of love are expressions of fear, I assure you this is the case. Thus any behavior, including sexual behavior that is not of love, is of fear. All that comes of fear is nothing. What this means is that cause and effect are not influenced by what comes of fear.” (T3:19.8)
So love is everything and fear is nothing. If behavior is not of love, Jesus says that this behavior is based in fear. He specifically mentions sexual behavior, and we know that much of our sexual lives have heretofore been more or less a “secret” from God. Not really, but we like to think so. Jesus brings this secrecy out into the open, letting us know that we are not getting away with anything. Our fearful sexual behavior, that is, our sexual behavior that is not love-centered, is actually nothing. It doesn’t amount to anything in any substantial way. It is just a lesser way to spend time.
We are encouraged to let our actions and our behaviors come out of love always. Then we will have no reason to regret. We will be home free in sexual behavior, in particular.