Some have struggled with the word faith, desiring a succinct definition of it, but nowhere in Scripture does a working definition of faith appear. In places, however, the Bible gives a rather indirect definition of faith. Keeping in mind that the words belief and faith are translations of the same Greek word, let us look at several such texts.
Elizabeth, the mother of John the Baptist, said of Mary, "And blessed is she that believed: for there shall be a performance of those things which were told her from the Lord" (Luke 1:45).
Paul knew that God intended for him to be brought before Caesar and encouraged his shipmates as they were about to be shipwrecked with the words: "Wherefore, sirs, be of good cheer: for I believe God, that it shall be even as it was told me" (Acts 27:25).
Speaking of Abraham's faith that God would give him a son, Paul says that "he staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God; And being fully persuaded that, what he had promised, he was able also to perform" (Romans 4:20-21).
Of Sarah, Abraham's wife, it is said, "Through faith also Sarah herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised" (Hebrews 11:11).
These verses and the verse in our text give us a working definition of faith. It is, therefore, a firm belief, a conviction, a judgment, that God is both capable and faithful to perform what He has promised, and that there will be such a performance. This kind of faith brings the future into present reality. JDM