"sin" Series

SIN

A Lenten Call to Conversion and Holiness

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Introduction: Why Speak About Sin in Lent?

Dear brothers and sisters in Christ,

During this sacred season of Lent, the Church invites us to prayer, fasting, and charity. But beneath all these practices lies one central purpose: conversion of heart.

Lent is not merely about giving up food or comforts. It is about confronting the reality of sin in our lives and returning to God with sincere repentance.

If we do not understand sin, we will never understand grace.

If we do not understand our wounds, we will never seek healing.

If we do not recognise darkness, we will not long for light.

Today, let us reflect deeply on:

1. What sin really is

2. How sin affects us and the world

3. The difference between mortal and venial sin

4. The mercy of God

5. How to live victoriously during this Lenten season

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I. What Is Sin?

1. Sin Is Not Just Breaking a Rule

The Catechism of the Catholic Church teaches:

“Sin is an offence against God… a failure in genuine love for God and neighbour.”

Sin is not merely disobedience.

Sin is a broken relationship.

When a child disobeys a loving parent, the pain is not just about rules — it is about the relationship.

Similarly, sin wounds:

• Our relationship with God

• Our relationship with others

• Our own inner peace

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2. Biblical Understanding of Sin

a) 1 John 3:4

“Sin is lawlessness.”

Sin is rebellion against God’s loving order.

b) Romans 3:23

“All have sinned and fall short of the glory of God.”

No one is exempt. Sin is universal.

c) Isaiah 59:2

“Your iniquities have separated you from your God.”

Sin creates separation.

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II. The Origin of Sin

The Fall – Genesis 3

In Genesis 3, Adam and Eve chose to distrust God.

The first sin was not about fruit.

It was about pride.

The serpent tempted them with:

“You will be like God.”

St. Augustine famously said:

“Pride is the beginning of all sin.”

The first temptation was:

• Doubt God’s goodness

• Distrust God’s word

• Desire independence from God

And that temptation continues today.

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III. The Reality of Original Sin

Through the first disobedience, humanity inherited what the Church calls Original Sin.

Romans 5:12:

“Sin came into the world through one man, and death through sin.”

Original Sin means we inherit a fallen nature — inclined toward sin.

We experience this daily:

• We know the good yet choose the wrong.

• We promise to change yet fall again.

St. Paul describes this struggle in Romans 7:19:

“For I do not do the good I want, but the evil I do not want is what I do.”

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IV. Mortal and Venial Sin

The Church distinguishes between:

1. Mortal Sin

A grave matter committed with full knowledge and deliberate consent.

Mortal sin:

• Destroys charity in the heart

• Breaks our relationship with God

• Requires Sacramental Confession

1 John 5:16 speaks of “sin that leads to death.”

2. Venial Sin

Lesser sins that weaken but do not destroy charity.

Venial sins:

• Make us spiritually weak

• Prepare the ground for greater sins

St. Teresa of Avila warned:

“From small faults come great falls.”

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V. The Effects of Sin

Sin is never private.

1. It Harms the Individual

• Loss of peace

• Guilt

• Anxiety

• Spiritual dryness

Psalm 51:3:

“My sin is ever before me.”

2. It Harms Families

• Broken marriages

• Dishonesty

• Anger

• Addiction

3. It Harms Society

• Corruption

• Violence

• Injustice

• Exploitation of the poor

We see this clearly today:

• Digital addiction

• Pornography epidemic

• Greed-driven economy

• Broken relationships

Sin not only damages souls but also civilisations.

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VI. Modern Forms of Sin

Lent invites us to examine our conscience seriously.

Today’s common sins include:

• Materialism

• Social media pride and comparison

• Gossip and character assassination

• Indifference toward the poor

• Unforgiveness

• Spiritual laziness

James 4:17:

“Whoever knows the right thing to do and fails to do it, for him it is sin.”

Sin is not only what we do wrong.

It is also what we fail to do.

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VII. The Mercy of God Is Greater Than Sin

Now comes the Good News.

Romans 5:20:

“Where sin increased, grace abounded all the more.”

God never tires of forgiving.

Jesus revealed this beautifully in:

The Parable of the Prodigal Son (Luke 15)

The father:

• Waited

• Watched

• Ran

• Embraced

• Restored

The son sinned greatly.

But the father’s mercy was greater.

St. John Paul II said:

“The Church lives an authentic life when she professes and proclaims mercy.”

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VIII. The Cross: The Price of Sin