When a person makes a decision to follow Christ, the struggle with self-centeredness is not immediately overcome. What is the cause of this inability to change?

I don’t believe it is an inability to change, I believe it’s because of how long we lived within in our own skin and how long the thoughts and intents of our mind have been there that things change slowly. Sometimes there are things in our life that change almost overnight. But because the flesh lust against the spirit and the spirit against the flesh we find it hard sometimes change when we try to see change as immediate. We need to realize that God is still working on us and will be doing so until he returns. Change will happen however you did not get all the bad habits and sinful clutter in your mind overnight, it’s not going to come out overnight.

I don’t believe it is an inability to change, I believe it’s because of how long we lived within our own skin and the thoughts and intents of our mind that things change slowly. Sometimes there are things in our life that change almost overnight. But because the flesh lust against the spirit and the spirit against the flesh we find it hard sometimes change when we try to see change as immediate. We need to realize that God is still working on us and will be doing so until he returns. Change will happen however you did not get all the bad habits and sinful clutter in your mind overnight, sometimes it’s not going to take overnight to get out.

JUst because we decide to follow Christ, we still battle with our own selfishness, even strong Christians might experience this. And when we are new, there is still the old life we just left, which can be hard to break away from. We just need to grow, like children, and become strong and mature in our faith

The cause of the inability to change is that a person is a babe in Christ. Similar to a newborn baby, there are stages of growth as well as establishing a relationship with Jesus. We will continue to contend with self-centeredness because of our sinful nature. It takes time to put on righteousness.

There will always be a part of us that is self-centered, as our sinful nature will be always with us on this side of eternity. As we mature in our faith, there should be significant change, but this comes with time, practice, and continual reliance on God.

I think our nature is still on us that’s why we need to get ample time of reading and learning the words of God and living in it as apostle Paul says in Roman chapter 7:14-25.

Once a person decides to follow Christ, the struggle with self-centeredness does not immediately go away. This inability to quickly change this mindset is caused by newness in relationship with Jesus. As we come to know Him more, He increases in us and therefore we decrease.

Our sin. Our flesh is weaker than our spirit. We do what we do not want to do and not do what we want to do.

Our old nature is still in us and some part of us still wants to rebel

Original sin, is the short answer. Due to our inherent imperfection and the sin nature, we will always “instinctively” turn to self. Satan wants nothing more that to watch us fail to cast our cares on the Lord and to wallow in self-centeredness.

We are, at our root, sinners. We will always struggle with the desires of our flesh. We naturally tend to want to suppress the truth deep within our hearts. Original sin is where this all began. But through Christ and with the Holy Spirit’s counsel and direction, we are ultimately sanctified through the grace of God.

Since we lived most of our lives and spend time with people and family members with self centeredness it will take time to make a change. But with studying God’s Word and drawing closer to Him we start to let go of that self centeredness little by little through faith in Jesus Christ and the leading of the Holy Spirit