What kind of faith is the Bible talking about?
The Bible speaks of a concerted faith and trust in God's own act of paying sin's penalty through Christ's cross. It is believing with all the heart that He is alive and His Word true, not salvation by works. As with Abraham, God accounts such faith as righteousness.
Les teaches that the Bible is talking about a concerted faith and trust in the very act of God, that God Himself paid the penalty for all our sin. He illustrates it by saying that if you or I had been the only person living, Christ would have still gone to the cross to purchase our redemption. When a person has that kind of faith and can honestly say, “I believe that with all my heart, and I know He is alive, I know that His Word is true,” then God sees that faith as salvation. Les then points to Romans 4, where it was not by works that Abraham was saved, but by faith. Abraham believed God, and God accounted it unto him as righteousness. He was a believer.