The Old Testament is like a definition that God gives us. God is like our teacher, and teachers give definitions all the time. God gave us the Mosaic Law as our definition. When we could not figure it out, because it was difficult, just like when you can’t figure out a big definition in school, God sent Jesus as our example, to help us understand. The Old Testament (Mosaic Law) is like the definition, and the New Testament (Jesus) is like our example to help us understand the definition.