The Question That Challenges Catholics—Was Mary Really Born Without Sin and Remained Sinless —And How to Respond with Confidence
by Keith Abell, RPh MI
Ad Majorem Dei Gloriam
Post 9 in the “In Whom Do You Put Your Trust?” Series
Welcome to post nine in our series responding to the 17 questions that some fundamentalists posed to me in 1998 to challenge my Catholic faith. These questions were designed to shake my faith as a cradle Catholic. Questions I had never really reflected on about what I believe or why. If you’re a cradle Catholic, this one might hit close to home:
“When the Church tells you that Mary was born without original sin and lived a sinless life, and God tells you that Jesus was the only one who ever did that, in whom do you put your trust?”
It sounds convincing, doesn’t it? But let’s slow down and unpack this. Because when you understand what the Church actually teaches—and why—it not only makes sense, it deepens your love for Christ.
What Does the Church Actually Teach?
First, Catholics do not believe Mary is equal to Jesus. Jesus is God incarnate, sinless by His very nature. Mary’s sinlessness is entirely by grace, not by her own power. She needed a Savior—just like us. The difference? She was saved in a unique way: ahead of time, by Christ’s merits.
Think of it this way: if you could prevent your mother from falling into a pit, wouldn’t you? That’s exactly what God did for Mary.
The Pit Analogy
Imagine two people walking toward a deep pit. One falls in and is pulled out—that’s us, redeemed after sin. The other is stopped before falling—that’s Mary, redeemed before sin touched her. Both need a rescuer. Both depend on the same Savior. Mary’s privilege magnifies Christ’s power—it doesn’t compete with it.
Does Scripture Support This?
Absolutely. Look at Luke 1:28. The angel greets Mary as “full of grace”—in Greek, kecharitomene, a term that means a completed state of grace. Genesis 3:15 speaks of enmity between the woman and the serpent—total opposition to sin. And Luke 1:35 says the Holy Spirit “overshadowed” Mary, echoing Exodus 40:34 where God’s glory overshadowed the Ark of the Covenant.
And that’s no coincidence. Mary is the New Ark of the Covenant. The old Ark carried the Law, manna, and Aaron’s rod. Mary carried Jesus—the Word made flesh, the Bread of Life, and the eternal High Priest. Just as the Ark was built to exact standards and kept pure, Mary was prepared by God’s grace.
But Doesn’t the Bible Say Jesus Was the Only One Without Sin? Scripture says Jesus is sinless (Hebrews 4:15)—true! But it never says God cannot grant grace to others. Romans 3:23 (“all have sinned”) is a general statement, not an absolute without exception. Even Protestants admit unborn babies or Christ Himself are exceptions. Mary is an exception by God’s design, not by her own merit.
What Did the Early Church Fathers Say?
From the earliest centuries, Christians saw Mary as uniquely holy.
- St. Irenaeus: “The knot of Eve’s disobedience was loosed by the obedience of Mary.”
- St. Justin Martyr contrasted Eve’s unbelief with Mary’s faith.
- St. Ephrem: “You and your Mother are more beautiful than any others, for there is no blemish in you nor any stains upon your Mother.”
- St. Ambrose called Mary “free from every stain of sin.”
- St. Augustine: “We must except the Holy Virgin Mary when discussing sin.”
Why did they say this? Because they were defending the truth of the Incarnation. If Jesus is truly God and truly man, then the vessel that bore Him should be holy—not by nature, but by grace.
Modern Catholic Voices
Scott Hahn calls Mary the New Ark and says her privileges magnify Christ’s glory. Jeff Cavins shows how Mary’s obedience fulfills salvation history. Jesse Romero reminds us that Mary’s purity is essential in spiritual warfare. And Fr. Mike Schmitz? He loves the pit analogy—because it makes sense.
So, Who Do We Trust?
We trust God—who speaks through Scripture and the Church He established (Matthew 16:18–19). The Church doesn’t invent doctrine; it faithfully interprets divine revelation under the guidance of the Holy Spirit (John 16:13).
Mary’s sinlessness isn’t a challenge to Christ’s uniqueness—it’s a testimony to His saving power.
Practical Takeaways for Catholics
- Know the Basics: Mary’s sinlessness is by grace, not by nature. She needed a Savior—just like us.
- Use the Pit Analogy: It’s simple and powerful. Both Mary and we are saved by Christ, just in different ways.
- Lean on Scripture: Luke 1:28, Genesis 3:15, and the Ark parallels in Exodus and Luke are your best friends.
- Quote the Fathers: Irenaeus, Ambrose, Augustine—they all affirm Mary’s unique holiness.
- Deepen Devotion: Mary’s privileges point to Christ. Pray the Rosary not to worship Mary, but to draw closer to Jesus through her example of perfect obedience.
Final Word
When someone asks, “In whom do you put your trust?” the answer is simple: In God—who works through His Word, His grace, and His Church.
Mary’s story isn’t about her. It’s about Him. Her sinlessness magnifies Christ’s saving power and reminds us that God’s plan is always bigger than we imagine.
Closing Prayer
Heavenly Father,
Thank You for the gift of salvation through Your Son, Jesus Christ. We praise You for Your mercy that lifts us from the pit of sin and for the grace that prevented Mary from ever falling, making her the pure vessel for Your Word.
Lord, we know that without You, we stumble and fall. Hold us firm on the path of holiness. Stop us before we take that step into sin. Fill us with Your grace so that we may walk in obedience and love, just as Mary did.
Blessed Mother Mary, you who were preserved from sin by God’s power, intercede for us. Help us to say “yes” to God in every moment, to trust His plan, and to live in the fullness of His grace. Lead us closer to Jesus, your Son, our Savior.
We ask this through Christ our Lord. Amen
Call to Action
If this post helped you understand your faith more deeply, please like, share, and subscribe so others can grow in confidence too.
And don’t stop here—this is Post 9 in our 20-part series responding to the fundamentalist’s questions designed to shake my faith with the challenge: “In whom do you put your trust?”
Go back and review the earlier posts in this series to strengthen your understanding of Catholic teaching and be ready to give a reason for the hope that is in you (1 Peter 3:15).
Stay tuned for the next post as we continue to tackle these questions head-on—together.




