
In "Know Your Why," finance titan Ken Costa bridges faith and career with biblical wisdom. Endorsed by Rick Warren and Bear Grylls, this unique guide helps discover purpose through divine alignment. What makes the chairman of Alpha International's perspective so "foundational to living a purpose driven life"?
Ken Costa is the author of Know Your Why: Finding and Fulfilling Your Calling in Life and an internationally renowned investment banker with over 40 years of experience in the financial sector. This personal development and Christian living book explores how to discover purpose and meaning in work, drawing on Costa's unique perspective bridging faith and high-level finance.
Costa served as Chairman of UBS Investment Bank for Europe, the Middle East, and Africa, and later as Chairman of Lazard International, advising on major global deals including the sale of Harrods to the Qatari royal family in 2010.
Born in South Africa and educated in law and theology at Cambridge University, he is now Emeritus Professor of Commerce at Gresham College and Chairman Emeritus of Alpha International, which has reached over 27 million people worldwide. His other books include God at Work and The 100 Trillion Dollar Wealth Transfer, which examines how generational change will revolutionize capitalism.
Know Your Why by Ken Costa is a Christian guide to discovering and fulfilling your calling in life, particularly within the workplace. Costa explores how to align your work with God's purpose by examining your identity in Christ, passions, and gifts. The book addresses practical challenges like fear of failure, decision-making, and waiting on God's timing while emphasizing that work should be viewed as ministry and service for the common good.
Ken Costa is a London-based investment banker with over 40 years of experience in global finance, having served as Chairman of Lazard International and UBS Investment Bank. He is also Dean of Holy Trinity Brompton Leadership College London and Chairman Emeritus of Alpha International. Costa uniquely bridges faith and secular professions, speaking on financial ethics and Christian issues while training young leaders to integrate faith into their workplace.
Know Your Why is ideal for Christians struggling to find purpose and meaning in their work, especially those who view their careers as separate from their faith. The book particularly benefits professionals facing career transitions, feeling disconnected from their calling, or wrestling with "inferiority complexes regarding their vocations". It's valuable for anyone spending significant time at work—Costa notes we spend about 40% of our lives working—who wants to transform their workplace as salt and light.
Know Your Why is considered an inspiring and biblically grounded book that offers practical guidance on decision-making, perseverance, and aligning desires with God's will. Reviewers warn it "might just change the direction of your life" because it deeply challenges readers to discover their God-given callings. The book effectively blends biblical principles with workplace illustrations from Costa's 40-year banking career, making it particularly valuable for professionals seeking to integrate faith and work meaningfully.
The main ideas in Know Your Why center on understanding your core motivation and divine purpose. Costa emphasizes that identity in Christ comes before destiny, teaching that work is service for the common good and transformation of the workplace. Key takeaways include engaging with God through prayer to discern calling, seeking community support and accountability, viewing waiting as spiritual discipline, and overcoming fear by trusting God's guidance. Costa stresses that taking risks is essential to living a life of faith.
In Know Your Why, Ken Costa defines calling as a personal journey shaped by individual experiences, gifts, and relationship with God. He emphasizes that calling is not just about career choices but is deeply rooted in serving others and the common good. Costa teaches that identity comes before destiny—who we are in Christ precedes our life's purpose. He frames calling as "the place where your deep gladness and the world's deep hunger meet," highlighting the intersection of personal passion and societal need.
Know Your Why contains several impactful quotes that capture Costa's message.
Ken Costa identifies fear, particularly fear of failure, as a significant barrier to pursuing one's calling in Know Your Why. He offers strategies including seeking God's guidance through prayer and worship, and reframing failure as part of growth rather than permanent defeat. Costa encourages courageous action despite fears, emphasizing resilience and perseverance. He reassures readers that God's grace is sufficient and that mistakes can lead to new paths and insights, urging them to keep moving forward through challenges.
Community is essential in Know Your Why, serving as a support system that provides encouragement as individuals pursue their callings. Costa emphasizes that engaging with others creates accountability, helping people stay focused on goals and commitments. He advocates seeking advice from trusted friends and mentors during the discernment process. The book highlights shared wisdom and experiences from community members as valuable sources of guidance that can illuminate one's path and provide crucial insights for discovering purpose.
Ken Costa uses various biblical stories throughout Know Your Why to reinforce his teachings, with the story of Gideon serving as a prominent example. The Gideon narrative illustrates how God transforms individuals from doubt to confidence, empowering them to fulfill their callings. Costa uses this story to emphasize that true strength comes from God and that divine power enables individuals to achieve great things. He demonstrates through biblical examples how God breaks down personal and societal barriers, enabling people to step into their God-given purposes.
Know Your Why by Ken Costa provides practical guidance for career decisions by encouraging readers to seek God's guidance through prayer and scripture for clarity. Costa advises consulting trusted mentors and reflecting on experiences before taking action based on insights and God's leading. He helps professionals view their work as a calling rather than just a job, seeing workplaces as opportunities for transformation. The book is particularly helpful for those struggling with purpose at work or facing transitions, offering frameworks to identify passions, skills, and desires aligned with God's plan.
Ken Costa presents a three-part framework in Know Your Why for discovering calling:
He emphasizes examining the question "What will I do with what I have?" to consider how to use gifts and talents. Costa teaches that calling discovery requires active engagement—not passive waiting—through ongoing reflection, prayer, and action while remaining attentive to where deep gladness meets the world's deep need.
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Following God isn't blind obedience but a collaborative journey.
Our identity in Christ must come before our destiny.
In Christ all things hold together.
The workplace should be a continuation of our worship.
Small acts always have significant effects.
Break down key ideas from Know Your Why into bite-sized takeaways to understand how innovative teams create, collaborate, and grow.
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Have you ever found yourself wide awake at 3 AM, staring at the ceiling and wondering why you're here? Not just why you exist, but why you're in this specific job, relationship, or city? This existential question has haunted humanity for centuries. In "Know Your Why," Ken Costa draws from his remarkable journey from apartheid South Africa to the pinnacle of London's financial world to offer a refreshing perspective: finding your purpose isn't just a self-help exercise but a divine appointment. When Jesus asked his first disciples, "What do you want?" he wasn't making small talk - he was cutting straight to the heart of human desire and purpose. This question extends beyond mere existence to the specific contexts of our lives: Why am I here in this job? This city? This relationship? Following God isn't blind obedience to a distant deity but a collaborative journey - like traveling with a friend toward a shared destination, working out the route together.
Understanding who we are precedes discovering what we're called to do. Our identities often form around negative narratives from past failures, yet faith offers a new story: "The old has gone, the new is here!" We must choose which narrative to believe, just as Beethoven chose the life-affirming theme for his Seventh Symphony. Many discover their true worth during career transitions, realizing their value exists beyond their profession. Knowing we're infinitely loved by God enables "Christ-style" living - bringing light everywhere, like the coffee kiosk worker who transformed her simple job into an opportunity to brighten customers' days. A common misconception divides spiritual and commercial realms, suggesting only religious work constitutes a "real" calling. Yet "in Christ all things hold together," and God calls us to daily work as much as to ministry. Like Mandela's campaign requesting handprints in sand, we're called to make an imprint on the world. Caleb exemplifies this, serving "wholeheartedly" with a "different spirit." When surveying Canaan, ten spies saw obstacles while Caleb and Joshua saw opportunity. Our outlook determines whether we see barriers or possibilities.
God multiplies our small acts of faithfulness beyond imagination. When Dairy Queen employee Joey Prusak gave twenty dollars to a blind man after witnessing theft, his simple act went viral and earned Warren Buffett's recognition. In life's economy, small acts always matter significantly, even when results aren't immediate. The prophet's widow teaches us to use what we already have. Desperation often blinds us to existing resources. By collecting jars from neighbors, she made her miracle public. Similarly, Ananias overcame fear to approach Saul, calling him "Brother" - launching Paul's world-changing ministry. Purpose discovery requires both action and patient waiting. God's waiting rooms aren't delays but preparation periods where conviction grows. Biblical figures exemplify this patience: Abraham waited twenty-five years, Moses forty, and Jesus thirty before beginning his ministry. When David could have killed Saul to accelerate his kingship, he refused to compromise integrity. Our most profound growth often happens because of delays, not despite them.
Making life choices challenges everyone. While options are a privilege, technological change can make decisions overwhelming. Costa offers five practical steps for difficult choices: First, consider - weigh options and form early impressions. Like Mary who "treasured and pondered" things in her heart, take time for reflection. Thorough research before making changes allows wisdom to emerge from quiet contemplation. Second, consult - seek advice from those sharing your values, those honest enough to challenge you, those with relevant experience, and trusted mentors. Avoid yes-men or competing agendas. Remember King Rehoboam's downfall from rejecting wise counsel. Third, clarify - use critical thinking to sift through information. Create pros and cons lists or simplify complex decisions until breakthrough moments emerge. Fourth, courage - doubt accompanies wisdom as "the beacon of the wise." Even biblical figures experienced doubt. Navigating uncertainty requires courage. Finally, contentment - well-made decisions bring peace. Like Jobs' calligraphy classes influencing Mac typography, seemingly random choices often reveal their purpose in retrospect.
Fear of failure creates the greatest barrier to fulfilling our purpose. Disappointments drain us while anxiety exhausts us as we rehearse worst-case scenarios that rarely happen. We must confront failure directly. Joseph's setbacks transformed him into someone who saved regions from famine. Often difficult paths prove more valuable than shortcuts, teaching deeper lessons in the byways than on highways. Mandela's imprisonment became his path to greatness - in those cells, he learned the forgiveness that transformed a nation. Costa offers five "fear flippers": look beyond circumstances, break the lie behind fear, speak truth aloud, remember to trust, and throw yourself completely into the struggle. Peter's request to walk on water shows his desire to participate in something extraordinary. When sinking, Jesus caught him - demonstrating that with support, failure becomes instructive rather than final. The question isn't whether you'll face fear, but whether you'll let it define your boundaries or break through them toward what matters most.
Living purposefully means breaking borders within ourselves and the world. Like Mozart's transcription of the forbidden Miserere that freed sacred music from elite confines, our actions can remove barriers separating people from hope. We achieve our potential by pushing beyond comfort zones while drawing strength from relationships and values. At the 1968 Olympics, Bob Beamon shattered the long jump record by nearly two feet by breaking through self-imposed limitations. During the 2012 European financial crisis, the European Central Bank head stabilized markets with just three words: "Whatever it takes." That's our challenge too - committing fully to community restoration and workplace transformation. Your purpose extends beyond personal fulfillment to bringing light to dark places. Whether in finance, education, or engineering, your contribution matters. The world needs fewer people asking "What's in it for me?" and more asking "What can I offer?" Aligning identity with action creates not just meaning but a homecoming to your intended life.
Our calling requires a "settled core" - an inner balance against life's storms. Rather than compartmentalizing, we should integrate spiritual, ethical, and vocational values into all areas, including our workplace. Consider Jo Rice telling young offender Tyrone he was clever, sparking Spear, a program helping disadvantaged youth find employment. Such small acts of courage create far-reaching ripples. The question isn't what we might do if we were different, but what we'll do with what we have. Like a coffee kiosk worker brightening customers' days, we can transform mundane work through our approach. Whether in finance, food service, or education, how we bring light to these environments matters most. Our worth comes from our identity as beloved children of God, not our profession. Your calling isn't just what you do but how you do it - with Caleb's "different spirit," seeing opportunities where others see obstacles. This settled identity becomes your foundation for making a unique imprint, asking not "What's in it for me?" but "What can I offer?"