
All In John Koelliker: The Faith of a Father
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Nov 5, 2025 John Koelliker, founder and CEO of Leland and a Forbes 30 Under 30 honoree, shares his journey of faith and entrepreneurship shaped by his father's cancer battle. He discusses how his father's unwavering faith during illness taught him about empathy and meaningful relationships. John reflects on lessons from his experiences, emphasizing the role of mentorship and the power of goal-setting as acts of faith. He also explores how kneeling in prayer deepened his spiritual life, and how being a committed spouse and parent influences both work and family.
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Consecration Through Suffering
- John watched his father consecrate suffering into growth while battling a brain tumor and it transformed their family dynamics.
- The experience taught John that perfection of intent matters more than perfection of action.
Mission Distance And Faith
- From Brazil on his mission, John received news his dad's cancer returned and felt torn but committed to his calling.
- Being a missionary gave him confidence in his relationship with God and helped him cope from afar.
Relationships Over Activities
- John and his dad reframed lost activities into the relationships that mattered beneath them.
- Success, his father said, is measured by how much you love the people around you.



