On the Mark

Peter Buckley and Mark O’Donnell conclude their journey through Acts of the Apostles by examining Cornelius in Acts 10 and what his conversion teaches about faith, work, and the danger of writing people off. Drawing on Romano Guardini, Joan of Arc, St. John Henry Newman, and St. Edith Stein, they argue that Christians should evaluate behavior without judging souls, act faithfully on the light God...

Peter Buckley and Mark O’Donnell continue their walk through Acts by reflecting on St. Paul’s conversion and what his witness teaches Christians about evangelizing in ordinary professional life. Mark argues that workplace evangelization begins not with programs or pressure, but with prayer, integrity, resilience under the cross, and a contemplative awareness of God in daily work.

In this episode of On The Mark, Peter Buckley and Mark O’Donnell explore Acts chapters 5 and 6, beginning with the sobering story of Ananias and Sapphira whose hypocrisy and dishonesty reveal God’s intolerance for double-mindedness in the early Church. The conversation then turns to the apostles’ bold witness amid persecution, the appointment of deacons as the Church grows, and the powerful exampl...

Peter Buckley continues his Acts of the Apostles series with Mark O'Donnell, moving into chapters 3 and 4 — Peter and John healing the crippled beggar, preaching to the Sanhedrin, and Barnabas's act of radical generosity. Mark argues that workplace evangelization is the modern equivalent of those miracles: mastering your craft, witnessing through holiness over years rather than arguments, and maki...

Peter Buckley and Mark O'Donnell open a new series turning to the Acts of the Apostles for lessons on being faithful, credible witnesses in the workplace. Drawing on the Ascension, Pentecost, and the early Church, Mark shows how ordinary professional life — done with excellence, integrity, and openness to the Holy Spirit — becomes the primary altar of a layperson's sanctification and evangelizatio...

In the final episode of our mini-series on the Vocation of the Business Leader, Peter Buckley and Mark O’Donnell explore how Catholic professionals can live out an integrated faith in daily work without compartmentalizing their lives. They discuss practical steps—showing up at company events, building trust through proximity, sharing faith in quiet personal moments, and courageously speaking up wh...

In this episode of On the Mark, Peter Buckley and Mark O’Donnell continue their conversation on living an undivided life as Catholic professionals. They explore practical ways to place God at the center of demanding careers and family responsibilities, rather than squeezing faith into leftover moments. Through honest discussion, they address the challenges of busyness, attachment to success, and t...

Join Peter and Mark as they discuss why Catholic professionals struggle to apply Catholic social teaching principles—like human dignity, solidarity, subsidiarity, and the common good—in their workplaces. Drawing from the document The Vocation of the Business Leader, they discuss how living a divided life leads to idolizing modern temptations such as money, notoriety (recognition/fame), and comfort...

In their first episode of 2026, Peter Buckley & Mark O'Donnell explore the Vatican document Vocation of the Business Leader: A Reflection. Drawing from Pope Benedict XVI's encyclical Caritas in Veritate, this rich guide calls Catholic business professionals to integrate faith and work, avoiding a "divided life" while serving the common good.

In this episode of "On the Mark," the Peter & Mark explore Pope Leo's general audience commentary from August 6, focusing on the theme of preparation. They discuss practical ways to prepare for evangelization at work, emphasizing the need for personal spiritual preparation and the importance of being in a state of grace.

In this episode, Peter and Mark discuss the writings of Pope Leo as an untapped resource within the Catholic Church and encourage listeners to engage with these documents, citing the example of Scott Hahn, who found great spiritual treasures in church documents during his conversion to Catholicism.

In this episode of "On the Mark," the focus is on concluding a three-part series on the virtue of hope. Peter and Mark discuss why Christ is the reason for hope, breaking it down into three main reasons: Christ heals our infirmities, Christ has overcome death, and Christ gives us justice and a destination.

In this episode of "On the Mark," Peter and Mark explore the concept of hope from both a worldly and Christian perspective, highlighting the differences between the two. They discuss how Christians view hope as one of the three theological virtues, alongside faith and charity, with the ultimate hope being in heaven and eternal life through Christ.

In this episode of On The Mark, host Peter Buckley welcomes back Mark O'Donnell to discuss the virtue of hope, a central theme for Pope Francis' declared Jubilee Year in 2025. They explore the theological significance of hope, contrasting it with worldly pursuits like self-sufficiency, wealth, fame, and power, which often lead to despair.

Join Peter and Mark as they discuss how relationships are fundamentally built upon one's relationship with God and how faith impacts professional relationships, promoting companionship and listening in the workplace.

In Episode 20 of On the Mark, Peter Buckley and Mark O'Donnell discuss Enduring Persecution in Lay Evangelization and that living out our vocations, whether in marriage, priesthood, or other endeavors, requires perseverance through difficulties and temptations.

This special anniversary episode of On the Mark delves into the heart of evangelization, particularly in the workplace, exploring how authentic masculinity can help us become more convincing personalities and better evangelizers in and through our work.

In this episode of "On the Mark," hosts Peter Buckley and Mark O'Donnell delve into the importance of prioritizing scripture reading in the Christian life, inspired by a thought-provoking video from mathematician and philosopher Dr. John Lennox. Dr. Lennox challenges listeners to reconsider the time spent on distractions versus seeking a deeper relationship with God through His word, emphasizing t...

In this episode, Peter & Mark focus on the recurring theme of encouraging people to evangelize, examining this through two recent homilies from Auxiliary Bishop Barbosa of the Archdiocese of Boston and Bishop Robert Barron of the Diocese of Winona-Rochester.

In this episode of On the Mark, we explore the concept of being "all in" and how it applies to both our spiritual and everyday lives. We begin by discussing the importance of prioritizing our spiritual journey and fully committing to the practices that bring us closer to God. Inspired by the podcast "10 Minutes with Jesus," we examine the small daily actions that can have a profound impact on our...

In this episode of "On the Mark," Peter and Mark discuss how Christians can balance their professional ambitions with their spiritual lives. Inspired by the writings of Marian Rojas Estape and principles from the Talmud, they explore the importance of governing one's passions, contentment, wisdom, and treating others with dignity.

In this episode, Peter and Mark explore the journey of becoming spirit-filled evangelizers by drawing inspiration from two remarkable figures: NFL kicker Harrison Butker and tennis legend Roger Federer. Both men, though excelling in the world of sports, showcase virtues and values that transcend the playing field.

In this episode, we focus on the virtue of temperance and its crucial role in evangelizing in the workplace. Listen as we explore the definition of temperance, as outlined in the Catechism and emphasized by Pope Francis in his general audiences. Using relatable analogies and real-life examples, Peter and Mark illustrate how temperance can act as an internal regulator, much like a thermostat, helpi...

Join Peter Buckley and Mark O'Donnell on another insightful episode of "On the Mark" as they delve into the theme of evangelization in the workplace, focusing on professionals in their forties and fifties. Drawing from personal experiences and reflections, Mark shares candid insights into the challenges faced by individuals as they navigate the intersection of faith and career advancement. From th...

In this episode, Peter and Mark continue to talk about Workplace Evangelization in the Different Stages of Life. In their conversation you'll learn that evangelizing in the workplace requires a realistic and personable approach rather than a strictly academic one and that genuine relationships are the foundation for evangelization in both your personal and professional lives. Professional competen...