We do not have the power in us to really do what is good. This is because our human nature is evil invaded. The evil one has intoxicated our flesh with evil and wicked tendencies. We have the tendency to do what is bad, but we find it difficult to do what is good. One could wonder why are we so much of evil in our nature?
One could see closed friends betraying their friends. What shall we say about blood siblings destroying the siblings just for material gain. What a world full of evil. The Bible says that the heart of man is desperately wicked. This is just the truth. Man cannot think of anything good to do on his own. They are altogether evil.
We are grateful for the Holy Spirit. The Holy Spirit cleanse our hearts of evil and gives us a new spirit. We should allow ourselves to be transformed by the renewing of our mind by the Holy Spirit. The Word of God alone can transplant good in us and remove the wickedness that is ruling us.