Our Lady in Medjugorje speaks to you about sin and forgiveness

Message dated December 18, 1983
When you commit a sin, your consciousness darkens. Then the fear of God and of me takes over. And the longer you stay in sin, the bigger it becomes and the fear grows within you. And so you move further and further away from me and God. Instead, it is enough to repent from the bottom of your heart to have offended God and decide not to repeat the same sin in the future, and you have already obtained the grace of reconciliation with God.
Some passages from the Bible that can help us understand this message.
Gn 3,1-13
The snake was the most cunning of all the wild beasts made by the Lord God. He said to the woman: "Is it true that God said: You must not eat of any tree in the garden?". The woman replied to the snake: "Of the fruits of the trees in the garden we can eat, but of the fruit of the tree that stands in the middle of the garden God said: You must not eat and touch it, otherwise you will die." But the snake said to the woman: “You will not die at all! Indeed, God knows that when you eat them, your eyes would open and you would become like God, knowing the good and the bad ". Then the woman saw that the tree was good to eat, pleasing to the eye and desirable to acquire wisdom; she took some fruit and ate it, then also gave it to her husband, who was with her, and he also ate it. Then both of them opened their eyes and realized they were naked; they braided fig leaves and made themselves belts. Then they heard the Lord God walking in the garden in the breeze of the day and the man and his wife hid from the Lord God in the middle of the trees in the garden. But the Lord God called the man and said to him, "Where are you?". He replied: "I heard your step in the garden: I was afraid, because I am naked, and I hid myself." He went on: “Who let you know you were naked? Have you eaten from the tree of which I commanded you not to eat? ". The man replied: "The woman you placed beside me gave me a tree and I ate it." The Lord God said to the woman, "What have you done?". The woman replied: "The snake has deceived me and I have eaten."
Genesis 3,1-9
The snake was the most cunning of all the wild beasts made by the Lord God. He said to the woman: "Is it true that God said: You must not eat of any tree in the garden?". The woman replied to the snake: "Of the fruits of the trees of the garden we can eat, but of the fruit of the tree that stands in the middle of the garden God said: You must not eat it and you must not touch it, otherwise you will die". But the snake said to the woman: “You will not die at all! Indeed, God knows that when you eat them, your eyes would open and you would become like God, knowing the good and the bad ". Then the woman saw that the tree was good to eat, pleasing to the eye and desirable to acquire wisdom; she took some fruit and ate it, then also gave it to her husband, who was with her, and he also ate it. Then both of them opened their eyes and realized they were naked; they braided fig leaves and made themselves belts. Then they heard the Lord God walking in the garden in the breeze of the day and the man and his wife hid from the Lord God in the middle of the trees in the garden. But the Lord God called the man and said to him, "Where are you?". He replied: "I heard your step in the garden: I was afraid, because I am naked, and I hid myself."
Sirach 34,13-17
The spirit of those who fear the Lord will live, because their hope is placed in the one who saves them. Whoever fears the Lord is not afraid of anything, and does not fear because he is his hope. Blessed is the soul of those who fear the Lord; who do you rely on? Who is your support? The eyes of the Lord are on those who love him, powerful protection and strength support, shelter from the fiery wind and shelter from the meridian sun, defense against obstacles, rescue in the fall; lifts the soul and brightens the eyes, grants health, life and blessing.