Many readers can find the Old Testament somewhat confusing in the context of the New Testament, but it doesn’t have to be that way. The New Testament actually makes the meaning and purpose of the Old Testament clear:
Therefore the law was our tutor to bring us to Christ, that we might be justified by faith.
Perhaps one of the clearest explanations of the Old Testament found in the New Testament is the book of Hebrews. This book of the Bible provides an infallible commentary on much of the Law, explaining the purpose of the Levitical priesthood, animal sacrifices, and much more.
One of the books in the helpful New Inductive Study Series deals specifically with Hebrews: The Key to Living By Faith by Kay Arthur and Pete DeLacy. The purpose of this guide is not to spell out answers to all of your questions, but rather to train you to find the answers in Scripture. By marking key words, looking up related passages, tracking chapter themes, and interrogating the text, you will allow the Bible to interpret itself.
Along the way, you will learn what the Bible has to say about some of the topics that cause confusion among believers. More importantly, you will see the doctrine of justification by grace through faith illustrated—in the Old Testament.
Particularly rich study guide!