What is meant by calling the writings of Moses and the Prophets [the] "Old Testament?" Do they not set forth the covenant of grace? The doctrine of justification by faith - does not Paul in his Epistle to the Romans prove it from Genesis and from the Psalms? Where is the doctrine of substitution and the vicarious sufferings of the Messiah set forth more clearly than in Leviticus and in the 53rd of Isaiah? The term "Old Testament" leads people to fancy it is an antiquated book; whereas, in many respects, it is newer than the New Testament, referring more fully to the age of glory and blessedness on the earth which is still before us.
Source: Christ and Israel
Contributed by: Zaady