If the Word can be analyzed correctly, it can also be analyzed incorrectly. How do we know we are getting the right meaning? It is all about the context: remove the text surrounding a scripture you can get easily conned. Ask yourself these questions: Who is this directed at? Why is it being said? In the case of Jesus speaking, ask yourself whom He is talking to? If it is before going to the cross, is He talking to Jews about the law and trying to get them to realize that they cannot fulfill it on their own? Or is He speaking prophetically about how it will be in the future?
