Early believers went to exaggerated lengths to make the Old Testament into a Christian book. Their interpretations of Scripture often kept to the historical pattern of promise and fulfillment used by the New Testament writers. But some resourceful writers went far beyond this basic theme. They soon developed a method of interpretation that discovered Jesus Christ and the Christian message all over the Old Testament. We call this allegorical interpretation, because it turns seemingly actual events, such as the crossing of the Jordan River, into a symbol of baptism or some other Christian truth.