Jealousy is a sin of flesh. Jealousy is among the things that come from the heart, defiling a person. The whole body is full of darkness when the eye, the lamp of body, is bad. He who is glad at calamity will not go unpunished, said Solomon. Jealousy ruins the body health because it makes the bone rot and excludes us from inheriting the kingdom of God. Sometimes, as a punishment, God leaves some people in their sins, falling prey to jealousy and other heavy sins.
As long as jealousy doesn't drive anyone to commit acts of violence, then it can be somewhat tolerable (borderline annoying, depending on the circumstances).
Self hate is the worst trait. With that, you can become a very jealous, spiteful, greedy person in general. You can also be one of the nicest people in this case, but even the nicest people who hate themselves can cause self harm to themselves or worst, suicide.
