Believing is giving credit to a statement about some unseen thing. It is accepting the evidence of others, a thing constantly done in markets and law courts. Without it the affairs of daily life could not be carried on. Did not men believe in one another, there would be an end to all business and monetary transactions; banks and companies would close their doors. Almost every bit of buying and selling is carried on because there is belief in the veracity of statements made. Journeys are taken, papers signed, because of reliance in some telegram or letter.
Apply this everyday principle to statements made in the Word of God, and it engenders faith; its definition as given in Scripture is, "The evidence of things not seen." It is the confidence that God asks men to put in Him.