Because faith and trust have similar connotations, they are frequently used interchangeably. Faith is defined by Merriam-Webster as "belief, trust, and commitment to God." Most individuals don't know the difference between faith and trust; they consider them interchangeable. Any distinctions that exist are minor.

One distinction is purely grammatical. Depending on the context, trust can be a noun or a verb. As a noun, trust means "confident reliance on the character, aptitude, strength, or truth of someone or something," and as a verb, it means "to believe," "to entrust or place in one's care," or "to place confidence." Faith is always referred to as a noun (except in cases of its archaic use as a verb).

Faith is defined as "the substance of things hoped for, the evidence of things unseen" in the Bible (Hebrews 11:1). To put it another way, faith entails trusting in something you can't verify. Faith and trust are inextricably linked; faith is the assurance that God can and will do what He says in His Word. Faith entails both intellectual agreement and faith in something. As a result, we believe something to be true and put our faith in it—we rely on it. Faith understands that a chair is made to support the person who sits in it, and trust exhibits faith by actually sitting in the chair.

Faith isn't faith until it's accompanied with trust. Belief without trust is meaningless. Many people accept certain facts about Jesus Christ, yet the Bible does not define "faith" as knowing such facts to be accurate. Faith, according to the biblical definition, entails trust in—and devotion to—the facts.

A trust-fall is an illustration of the link between faith and trust. Even though your back is to them, you have faith that your friends will catch you. You believe they will not allow you to fall. As the name of the exercise implies, falling is an act of trust. You show your pals that you believe in them. Biblical faith is built on a foundation of faith in God.