Fear and loathing....

[Sethomas]

Popular usage of "jealousy" is usually incorrect, thus it is not the same as envy. Envy is a desire to have what someone else has, jealousy is a fear of losing something to someone else. Hence, being jealous of a wife if she's flirting with another man. That's why Old Testament reflections on the first commandment say, "Ours is a jealous God," when God would have no reason to envy anyone.