Baptism · Lesson 1 of 10

What Is Baptism, and Why Does It Matter So Much?

Baptism is the sacrament Jesus commanded that washes us, gives us God's own life and opens the door to every other sacrament. It is God's gift, not a family custom.

A complete lesson from Preparing for Baptism. About 3 minutes to read.

The Baptism of Christ, a painting by Andrea del Verrocchio and Leonardo da Vinci
The Baptism of Christ, Andrea del Verrocchio and Leonardo da Vinci, c. 1470-1475

Every Christian life begins at a font of water. Before anyone can receive Confirmation, the Eucharist or any other sacrament, he or she must first be baptized. That is why the Church calls Baptism the gateway to the Christian life: the door we walk through, and the foundation everything else is built on (CCC 1213).

The word itself teaches a lot. To baptize comes from a Greek word meaning to plunge or immerse. Going down into the water is a picture of being buried with Christ, and coming up is a picture of rising with him to new life (CCC 1214). The Church has other names for it too: the washing of regeneration, from St Paul's letter to Titus, because it gives a new birth; and enlightenment, because the baptized receive Christ, the true light (CCC 1215-1216).

Baptism is not only a symbol, like a ceremony that marks something that already happened. It is a sacrament: a sign given by Christ that really does what it shows. Water washes, and Baptism truly washes the soul. Water gives life, and Baptism truly gives the life of God. Something changes that can never be undone.

Why does it matter so much? Because Jesus made it matter. After his resurrection, his final command to the apostles was to make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit. On the first Pentecost, when the crowd asked Peter what they should do, his answer was simple: repent and be baptized (Acts 2:38).

So the Church teaches that Baptism is necessary for salvation for those who have heard the Gospel and are able to ask for it (CCC 1257). That can sound harsh, so notice what it really says. It is not a threat. It is the way God has chosen to give us his own life: through a real touch of water and word, the same way he came to us in a real human body. God himself is not limited by the sacraments, but we are not free to shrug off the gift he offers.

If you are preparing for your own Baptism, this is the start of a new life, not the end of a class. If you are a parent or godparent, you are asking the Church to give a child the greatest gift there is: to become a child of God. The lessons that follow walk through what that means, one step at a time.

Key points

  • Baptism is the gateway to the Christian life and the door to every other sacrament.
  • It is a true sacrament: it really does what the water shows, washing the soul and giving God's life.
  • Jesus himself commanded his apostles to baptize all nations in the name of the Trinity.
  • The Church teaches Baptism is necessary for salvation for those who know the Gospel and can ask for it, though God is not limited by his sacraments.

The Word of God

Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost.
Matthew 28:19, Douay-Rheims
Not by the works of justice, which we have done, but according to his mercy, he saved us, by the laver of regeneration, and renovation of the Holy Ghost;
Titus 3:5, Douay-Rheims

Catechism paragraphs for this lesson

  • CCC 1213
  • CCC 1214-1216
  • CCC 1257
  • CCC 1277

CCC means the Catechism of the Catholic Church. Saints Light teaches it in its own words and never quotes it. Look up any paragraph in a printed copy or at vatican.va. See every lesson by paragraph in the Catechism index.

From the tradition

Q. Is Baptism necessary to salvation? A. Baptism is necessary to salvation, because without it we cannot enter into the kingdom of heaven.
Baltimore Catechism No. 2, Q. 154

Live it this week

Visit the baptismal font in your parish church this week. Touch the water, make the Sign of the Cross slowly, and pray one Our Father there. If you are already baptized, ask the parish where it happened for a copy of your baptismal certificate.

Check yourself: three questions

1. Why does the Church call Baptism the gateway or door of the Christian life?

  1. Because it is the first sacrament, and no other sacrament can be received without it
  2. Because it is always celebrated at the front door of the church building
  3. Because it is the most important sacrament, more important than the Eucharist
  4. Because it is a welcome ceremony that registers a person in a parish
Show the answer

Because it is the first sacrament, and no other sacrament can be received without it. The lesson explains that Baptism is the foundation and the door to every other sacrament (CCC 1213). It is not merely a parish registration or a ceremony at a door.

2. What makes Baptism a sacrament and not only a symbol?

  1. It is very old and has been done for centuries
  2. It reminds us of something God already did for us earlier
  3. It is a sign given by Christ that really does what it shows
  4. It is a public promise made by the person being baptized
Show the answer

It is a sign given by Christ that really does what it shows. A sacrament is a sign from Christ that truly brings about what it signifies: as water washes, Baptism really washes the soul and gives God's life.

3. How should we understand the teaching that Baptism is necessary for salvation?

  1. Anyone who was not baptized is certainly lost, whatever the circumstances
  2. It applies to those who know the Gospel and can ask for it, and God is not limited by his sacraments
  3. It is an old teaching the Church no longer holds
  4. It means Baptism matters only for people who are close to death
Show the answer

It applies to those who know the Gospel and can ask for it, and God is not limited by his sacraments. The lesson presents CCC 1257: Baptism is necessary for those who have heard the Gospel and can ask for it. It is the way God offers his life, and God himself is not bound by the sacraments.

Words to know

Sacrament
A sign given by Christ to the Church that really gives the grace it shows.
Font
The basin or pool in a church that holds the water for Baptism.

More terms in the Catholic glossary. More passages in the Scripture index.

For catechists: a one hour class plan

Goal. Help the group see Baptism as God's real gift that begins a new life, not a family custom or a formality.

Opener. Go around the room and ask each person to share one thing they know about a Baptism: their own (a date, a place, a photo, a family story) or one they have attended. Ask those who are not yet baptized what first made them want to ask for it.

Discussion questions

  1. What is the difference between a sign that only reminds us of something and a sacrament that does what it shows? [Use the lesson's example: water washes, and Baptism truly washes the soul.]
  2. Why do you think Jesus' last command included baptizing, and not only teaching? [He chose to give his life through a real touch, as he came in a real body. See Matthew 28:19.]
  3. How do you react when you hear that Baptism is necessary for salvation? [Let people be honest. Stress that this describes a gift God offers, and that God is not bound by his sacraments (CCC 1257).]
  4. If Baptism is a new birth, what would it look like to live as someone newly born? [Gather concrete answers: praying, going to Mass, forgiving, starting again.]

Activity. Walk the group to the baptismal font, or show a large photo of it. Let each person dip a finger in the water and make the Sign of the Cross. Then sit together in silence for a few minutes and have each person write one sentence that completes this line: When I (or my child) come up out of this water, I hope... Invite anyone who wishes to read their sentence aloud.

Closing prayer. Heavenly Father, you call us to new life through water and the Holy Spirit. Open our hearts to the gift of Baptism, and make us ready to receive it, or to help these children receive it, with faith and joy. We ask this through Christ our Lord. Amen.

Timing. 0 to 5 minutes: welcome and opener. 5 to 20: read or summarize the lesson together. 20 to 35: discussion questions. 35 to 50: visit to the font and writing. 50 to 55: questions and practical details for the coming weeks. 55 to 60: closing prayer.

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