Jealousy is called "the green-eyed monster." The expression was coined by Shakespeare but the emotion has existed since the first humans on earth.
Jealousy or envy includes a range of emotions, all of which bring a sickness of the soul. Left unchecked it breeds greed and lust that are akin to idolatry (Eph 5:5; Col 3:5).
It is a destructive feeling and has no upside. Adam and Eve believed the serpent's lie because they thought God was holding back something good (Gen 3:4-6). Today we characterize it as FOMO—the fear of missing out.