The Bible was the only book Jesus ever quoted, and then never as a basis for discussion but to decide the point at issue.
Leon MorrisTo put it bluntly and plainly, if Christ is not my Substitute, I still occupy the place of a condemned sinner. If my sins and my guilt are not transferred to Him, if He did not take them upon Himself, then surely they remain with me. If He did not deal with my sins, I must face their consequences. If my penalty was not borne by Him, it still hangs over me. There is no other possibility.
Leon MorrisIt is the way of grace. People do not merit salvation but receive it as a free gift from God on the basis of what Christ's death accomplished.
Leon Morris