A child of God does not sin; a child of God does not offend Me. Yes there are many sins that wound the soul gravely, these are mortal sins. Those who commit them show their total indifference and alienation from God. Every man is a sinner, but the just man tries his best not to offend God by mortal sin. He will always strive to produce fruit in keeping with his repentance.
Sin must be despicable in your sight, because you are my child; but if you ever fall, run quickly to my Mercy, I am your merciful God, always available to pick you up.
Please don't crucify me anew and be ready to fight temptation when it comes, discern with your spirit, not with the complacency of the flesh.