“The Bible does not define faith as a leap to something that has no logical ground within its own worldview—a useful falsehood. When Paul writes, “We walk by faith, not by sight” (2 Cor. 5:7), some Christians seem to think he is speaking metaphorically and means “by faith, not reason.” But Paul is speaking literally and he means sight. Non-material realities are invisible. They cannot be seen. Faith is “the evidence of things not seen” (Heb. 11:1 KJV). It can take tremendous faith to act on the basis of realities we cannot see, but it is not a logical contradiction. Given the evidence, such actions can even be eminently reasonable, just as it is reasonable for physicists to count on the reality of forces and fields that they cannot see.”
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Nancy Pearcey,
Finding Truth: 5 Principles for Unmasking Atheism, Secularism, and Other God Substitutes