Catholics have a different understanding. “Sin is present in human history; any attempt to ignore it or to give this dark reality any other names would be futile”.
“The Gospel is the revelation in Jesus Christ of God’s mercy to sinners. (Luke 15). The angel announced to Joseph: “You shall call him Jesus, for he will save his people from their sins.” (Matthew 1:21). To receive his mercy, we must admit our faults. “If we say we have no sin, we deceive ourselves, and the truth is not in us.” 1 John 8.”
The Jews believed that only God can forgive sin and that is why they were so scandalized when Jesus said he could forgive sins as he was claiming to be God.
Catholics, Jews and I believe Muslims all believe in the concept of sin.
The definition of sin for Catholics: “Sin is an offense against reason, truth and right conscience; it is a failure in genuine love for God and for neighbour”.
Sin is an offense against God: “Against you, you alone, have I sinned, and done that which is evil in your sight.” (Psalm 51:4). Sin sets itself against God’s love for us and turns our hearts away from it. Like the first sin, it is a disobedience, a revolt against God through the will to become “like gods” (Genesis 3:5), knowing and determining good and evil. Sin is thus “love of oneself even to contempt of God” (St Augustine). In this proud self-exaltation, sin is diametrically opposed to the obedience of Jesus, which achieves our salvation.”
God love us and wants to be in a continual loving relationship with us, we can put barriers up between us and other people, due to a lack of love. Some sin is minor but some is very serious and can damage our relationship with God forever if we do not ask for forgiveness (because we are refusing God’s mercy and love in our lives).
However, God is always present “Where sin increased, grace abounded all the more” (Romans 5:20).
Catholics believe in one God so we do not believe we can be a god or goddess. We believe we are constantly living in God’s grace (in Him, I live and move and have my being) and that God’s life is present within us in the form of the Holy Spirit. We believe we are made in God’s image “God created man in his own image, in the image of God he created them, male and female he created them.” (Genesis 1:27). So both women and men are made in God’s image. Our body and soul are a single nature and our soul is immortal.
Any quotes are from the Bible or the Catholic Catechism (the teaching of the church).