There are evil in the heart's of mankind. Everyone has evil desires and we have two choices. We can do the evil conduct or we can reject the evil desire.
Every person has a sinful nature that will love bad conduct and reject the ways of the Lord.
When a person follow their own sins then the indecent process will increase in the person's life.
Everyone is depraved and without hope. People like to think that they will not be the murder but a few bad choices then that person is a murder.
The cure is Jesus. Mankind is weak and can not stop the sinful nature. A person can have strength but we all fail.
Jesus came to this world. He lived a perfect life and he died on the cross. He was the perfect sacrifice for mankind and he fulfilled the Old Testament. People can be forgiven and they don't have to sacrifice animals for temporal forgiveness.
Jesus died on the cross and he resurrected from the dead. The power of our sins and death should not be feared because of the resurrection. Jesus was dead in the tomb but he came back to life.
We must believe and repent from our sins and we must follow the Lord Jesus.