Since Matthew 6:1-18 showed the hypocrisy of the Pharisees’ religion, it follows that wherever you have hypocritical religion you will have greed. So, our Lord deals with their view of wealth and money. Wherever you find a false teacher, invariably you will find that he is in it for the money. That is why the Bible says that we are not to discharge our ministry for the sake of filthy lucre (I Pet. 5:2). The Bible characterizes hypocritical religion in two ways: it is greedy of money, and it is immoral in its lusts. Those two things follow in the course of false religions and false religious leaders.
The Pharisees were …… — using their religious position to fill their pockets. Twice Jesus had to take a whip and cleanse the temple (Jn. 2:13-17; 21:12- 13). Their system was one that filled their greed. They were using their religious position to get rich. There is nothing more foul smelling to the nostrils of God than hypocrisy and greed. I daresay there are people in our own country (some even well-known on television) who are doing exactly the same thing. Wherever there is religious hypocrisy, inevitably there is the problem of greed.
To the Pharisees, being rich was a sign of holiness. In other words, “I’m rich because I’m so righteous that God is blessing me.” When the Lord said, “It is easier for a camel to go through the eye of a needle, than for a rich man to enter into the kingdom of heaven” (Mt. 19:24), that was absolutely and utterly shocking. To the Pharisees, riches were the stamp of divine approval on one’s life because God gave riches to those who were righteous. To say that a rich man could no more enter the kingdom than a camel could go through the eye of a needle was really a shocking statement because they equated money with the blessing of God. So they greedily gathered money, and the richer they became the more they pretended to the people that they were spiritual. Overcoming Materialism Treasure in Heaven–Part 1 by John MacArthur
“Do not lay up for yourselves treasures on earth, where moth and rust destroy and where thieves break in and steal, but lay up for yourselves treasures in heaven, where neither moth nor rust destroys and where thieves do not break in and steal. For where your treasure is, there your heart will be also. “The eye is the lamp of the body. So, if your eye is healthy, your whole body will be full of light, but if your eye is bad, your whole body will be full of darkness. If then the light in you is darkness, how great is the darkness! “No one can serve two masters, for either he will hate the one and love the other, or he will be devoted to the one and despise the other. You cannot serve God and money. Mat 6:19-24