Why do the Ten Commandments end with no covetousness? And in general, why should we command in such a sublime status not to covet? We thought to say in the Talmud: The purpose of the revelation at Mount Sinai was "so that the fear of it will be upon your face, so that you will not sin..."
It is known that everything in the world has a measuring device, temperature is measured by a thermometer, speed is measured by a speedometer, blood pressure and so on... What, then, is the instrument with which a Jew can measure whether he truly believes in God? And if so, what is his level of faith? Well, the device is "You shall not covet." Let us explain, a person who truly believes knows that "everything is in the hands of Heaven" and "a person does not touch what is ready for his friend, even if he is full of tone." At Mount Sinai we were commanded to believe in God: "I am the Lord your God..." And "You shall have no other G-d before Me..." The Holy One, blessed be He, came and in that wonderful and sublime occasion He gave us a wonderful tool: If you truly believe in Me, you must not covet what your friend has, and if you covet and desire your neighbor's house, his car, etc... It is a sign that you fall into "I am the Lord your God," because "what rich man is he who rejoices in his lot..."
Rav Yisrael Pollack shlita (quenching thirst) added: What is the reason for installing curtains in the house? Well, it is common to think so that those outside will not see what is inside the house. This is true, but there is another reason, and that is so that those inside the house will not see and covet what the neighbors have outside the house...
And I saw in the name of Rav Elazar Danin, shlita, a wonderful story/parable: There was a greedy rich man who had everything, but he was looking for something that he still didn't have and couldn't find. He went out to search other cities, searched and couldn't find it. Finally, when he wanted to return, he saw a small shop and in the shop window there was a picture of two big eyes with the sign "The Big Eyes" on it, "I want those big eyes..." He went in and asked to buy it. The seller said to him, this picture has no price, its price is determined by weight, you put it in a scale and you put money on the other side, as soon as the scale rises and your picture balances... The rich man came and put a lot of money, precious stones and pearls and nothing... The picture doesn't move... He went out into the street and here he meets an old rabbi, can you please help me, how can I buy the picture? The rabbi went over and put 5 shekels in the second spoon, took a map and covered the picture and immediately the scales were balanced, what did you do? The rich man asked. Very simple, this is how the eye is, 'the more it sees, the more it wants'
