Why is the book of Ruth so important? Many people think of Ruth as a beautiful love story, but why is it in the Bible? Since this is a Bible study on Jesus in the Old Testament, what does Ruth tell us about Jesus? Very religious, orthodox Jews in Israel read the book of Ruth every Pentecost. Why? They have an answer, but they don’t really know that true answer. As believers, our commentary on the Old Testament is the New Testament. Looking at the New and Old Testaments, this study will help us understand why Ruth is read during Pentecost and what this story tells us about Jesus.