Ephesians 4:19. “Who being past feeling have given themselves over unto lasciviousness, to work all uncleanness with greediness.”
Those who do not know God can lose all sensitivity to sin.
I believe this is happening all around the world today, and it grieves the heart of God when the lack of shame affects believers, as well. We don’t want to even use the word sin, replacing it with things like poor choices, mistakes. Christ did not die for my mistakes. Mistakes are things like adding a column of figures incorrectly. That’s not sin. It’s just a mistake that can be quickly corrected.
Sin is what put Jesus on the cross. The evil within the heart of mankind is the reason He died. When a sinner comes to Christ for forgiveness and salvation, there WILL be a change in him. He will look differently on behaviors that seemed normal before; he will become uncomfortable with sin.
We are called upon to live not by the greedy, selfish desires in our hearts, but as those who have been set free from the chains of sin, cleansed by the blood of Jesus, set in right relationship with God through the sacrifice of His Son.
Lasciviousness involves sexual immorality. The lifestyle that focuses on fulfilling the lusts of the flesh should never be characteristic of a believer.
We are to be different from the unsaved. If we are not, how can we show them the love of God?