Colossians 3:5 states that greed is also idolatry.
Greed is a desire to have more, not being satisfied with what we have at present. If we indulge in greed, we are committed more to having materials and money than to serving and worshipping God. If it gets worse, we will rely more on money than on the Lord and fall into materialism, where money is the greatest thing in our lives.
In Isaiah 57:17, greed was rampant among the Israelites, so the Lord punished them, but they kept on in their willful ways nevertheless. Thus, Jesus said in Luke 12:15, “Watch out! Be on your guard against all kinds of greed.” Because man’s life is not in abundant possession but the will of God.
Luke 18 shows a case in which the property of a man became an idol, and he did not get closer to Jesus. A certain ruler came to Jesus and asked how he could get eternal life. It seems he was interested in eternal life when he heard the gospel that Jesus preached. Jesus told him not to commit adultery, murder, theft, and false testimony, but to honor his parents. He said he had kept all of them. However, Jesus penetrated the idol in his heart at once. He did not reveal to Jesus that he was rich, but Jesus knew that he had many possessions and relied heavily on them. Jesus told the ruler to sell everything he had and give to the poor, and he would have treasure in heaven. The ruler was very sad when he heard it because he did not want to leave his possessions, although he was also interested in eternal life.
His richness was positioned as an idol that he relied on.
Eventually, he could not accept Jesus’s command to share what he had with the poor for heaven.
The Bible shows more reasons why people serve idols.
Jeremiah 10:14 teaches by saying that people make idols because they are senseless and without knowledge. They do not know God and cannot distinguish between what is right and wrong, so they make things that are silly and vain along with their desires and wants.
The Israelites, who escaped Egypt along with Moses, “began to feel anxious” when Moses took longer than expected to stay on Mount Sinai for God’s commandments. So, some of them proposed to make an idol to guide them.
They immediately collected gold and made the shape of a calf and called it their god. They did not believe that God was leading them. They just wanted to rely on the vanity seen before their eyes. They did not trust God entirely and made an idol to depend on another. The Lord said they would perish when He judges according to their deeds.