Col. 3:5-6 So put to death the sinful, earthly things lurking within you. Have nothing to do with sexual sin, impurity, lust, and shameful desires. Don't be greedy for the good things of this life, for that is idolatry. God's terrible anger will come upon those who do such things.
Putting to death is to no longer let sinful things be a part of who you are. It is no longer living under the influence of sinful desires. It is refusing to participate in sinful things or practices. It is walking away from sinful temptations. It is squelching sinful desires. It is changing the course of our natural way to live and instead strive to live to honor and please God.
There are many things that the world deems to be good. There are many things that appeal to us and cause us to want them. We need to keep our desires under control. When what the world offers us become the driving force in our lives, it's greed. It causes us to want the world's offerings more than we do a healthy relationship with God. It is sin and we must be concerned about this. If we are not careful, we will develop greater priorities in life than God. We will be led away from God and into sin.
Paul warns us that those who do not put away from them sinful desires and greed will face God's wrath. God will not fight for our allegiance; He lets us choose whether or not we will serve Him and love Him more than anyone, or anything, else in life. You cannot love the Lord and hang on to worldly desires or participate in worldly activities. You cannot love Him and desire something else more than Him. God commands all of our heart loyalties. We cannot live in Christ with earthly attachments.