28/02/2026
The thief on the cross, traditionally known as St. Dismas, is often presented as biblical proof of “faith alone” because Jesus told him, “Amen, I say to you, today you will be with me in Paradise” (Luke 23:43). The common argument is that the thief had no time to perform good works, was not sacramentally baptized, and therefore must have been saved by faith alone. However, the Catholic Church does not interpret this passage as evidence for justification by faith alone in the Protestant sense.
When we look carefully at the Gospel account (Luke 23:39–43), the Good Thief does more than simply believe internally. He rebukes the other criminal, acknowledging moral truth. He openly confesses his own guilt, saying, “We are receiving the due reward of our deeds.” He proclaims Christ’s innocence and even professes faith in His kingship: “Jesus, remember me when you come into your kingdom.” In that brief exchange, we see faith, repentance, humility, public confession, and hope. His faith is not isolated or sterile; it is a living, repentant, and loving faith.
The Catechism of the Catholic Church teaches that justification “is not only the remission of sins, but also the sanctification and renewal of the interior man” (CCC 1989). It also reminds us that “faith apart from works is dead” (CCC 1815, citing James 2:26). The Church has always taught that we are saved by grace through faith working in love, not by works apart from grace, but also not by faith alone understood as a mere legal declaration without interior transformation. The Council of Trent definitively rejected the idea that the sinner is justified by faith alone (Session VI, Canon 9), affirming that justifying faith is inseparable from hope and charity.
The Church also recognizes that God is not bound by the sacraments, even though we are bound to them. The Catechism speaks of “baptism of desire” (CCC 1258–1259), explaining that those who desire salvation and do God’s will as they understand it can receive the grace of baptism without the sacramental rite. The Good Thief is traditionally understood as an example of God granting extraordinary grace at the moment of sincere conversion.
The Fathers and Doctors of the Church support this understanding. Augustine of Hippo emphasized that the thief believed, confessed, and suffered alongside Christ. Thomas Aquinas taught that he received justification through perfect contrition and charity infused by grace, demonstrating that God can operate outside the ordinary sacramental economy. John Chrysostom marveled at the depth of the thief’s faith, noting that although he did not witness Christ’s miracles, he nonetheless confessed Him as King.
In the end, the Good Thief does not prove “faith alone.” Rather, he proves that salvation is entirely by grace, that true faith includes repentance and love, and that God can save even at the final hour. His example supports the Catholic understanding that justifying faith is a living faith—one that turns the heart toward God in humility, trust, and charity.