It is absolutely mindboggling. Moreover, not only is it destructive to be envious, it is also destructive to arouse envy in others. But the Torah begs to differ. If we have it and flaunt it, thereby causing envy in others, we are most definitely doing something wrong. The only way, Rabbi E.E. Dessler explains, is to become a giver to the community rather than a taker.
People look kindly on givers.
They are inclined to be generous with people who give generously of their time, their money and their energies. But those who hoard it and flaunt it, who are miserly with the gifts God has granted them, are not as pure as the driven snow. People are not inclined to cut them any slack, and thus, they become vulnerable to envy. The Ten Commandments are the fundamentals of Judaism. Every single one of them is a fundamental of the faith.