"Leap of faith": where did this expression come from

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Post cover: "Leap of faith": where did this expression come from

"Leap of faith": where did this expression come from

This content has been automatically translated from Ukrainian.
Almost everyone has heard the phrase "it was a true leap of faith" at least once. This is said about decisions made without complete confidence in the outcome: changing jobs, moving, starting a business, or any other step where there are no guarantees of success. Today, the expression is so widespread that it seems like a modern motivational slogan. In fact, its roots run much deeper.
Most often, the expression "leap of faith" is associated with the 19th-century Danish philosopher Søren Kierkegaard. He wrote about situations when a person encounters the limits of rational knowledge and cannot achieve absolute certainty through logic. In such cases, Kierkegaard believed, a person makes a kind of "leap" — moving from doubt and calculations to faith, trust, or personal decision. Interestingly, the philosopher himself did not use this expression as a fixed term, but his ideas became the foundation for the popular formulation "leap of faith," which subsequently became established in many languages.
Initially, the concept had primarily religious and existential meaning. It was not about risk in business or relationships, but about the inner choice of a person who cannot prove the truth logically but still decides to trust. For Kierkegaard, it was an act of personal responsibility: a person does not receive guarantees but must make the choice independently.
Over time, the expression transcended philosophy. In the 20th century, it began to be actively used by psychologists, writers, speakers, and authors of popular literature. "Leap of faith" became a metaphor for any important decision that requires courage. For example, a person may dream for years about starting their own business, but only at a certain moment dares to quit their job and start their own venture. This moment is often referred to as a leap of faith.
Interestingly, in everyday language, the expression has several shades of meaning. The first is a religious or spiritual step, when a person accepts certain beliefs without full rational proof. The second is a life risk associated with an unknown future. The third is a psychological act of trust: in oneself, in other people, or in circumstances. In all these cases, what is common is that the decision is made under conditions of incomplete information.
Today, the expression is often heard in business and self-development. Motivational speakers urge to "take a leap of faith" when a person is afraid of change. However, it is important to understand that this expression does not mean recklessness. The idea is not to act blindly, but that no important decision can be absolutely guaranteed. Even after careful analysis, uncertainty remains, and at a certain moment, one has to move from calculations to action.
The popularity of the expression has also been aided by mass culture. It can be found in movies, books, video games, and songs. It became particularly well-known thanks to the Assassin's Creed game series, where the heroes perform a literal "leap of faith" from great heights. Although this is already an artistic interpretation, it successfully conveys the main idea — the necessity to trust and take a step into the unknown.
That is why the expression has survived for over a century and has not lost its relevance. People constantly face situations where it is impossible to achieve one hundred percent certainty. Should one change professions? Move to another country? Start new relationships? In such moments, we often balance between fear and hope. And when a decision is finally made, it truly feels like a leap: we detach from familiar ground, not knowing for sure what awaits ahead.
Perhaps this is where the power of the expression "leap of faith" lies. It reminds us that the most important changes in life rarely happen under conditions of complete certainty. Sometimes, for a new beginning, what is needed is not absolute confidence, but enough courage to take the first step.

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