I think that Jesus used hyperbole to be a Great Persuader. From the Sermon on the Mount:
For truly I tell you, until heaven and earth disappear, not the smallest letter, not the least stroke of a pen, will by any means disappear from the Law until everything is accomplished. (Matt. 5:18)
“Settle matters quickly with your adversary who is taking you to court. Do it while you are still together on the way, or your adversary may hand you over to the judge, and the judge may hand you over to the officer, and you may be thrown into prison. Truly I tell you, you will not get out until you have paid the last penny. (Matt. 5:25-26)
If your right eye causes you to stumble, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell.And if your right hand causes you to stumble, cut it off and throw it away. It is better for you to lose one part of your body than for your whole body to go into hell. (Matt. 5:29-30)
All you need to say is simply ‘Yes’ or ‘No’; anything beyond this comes from the evil one. (Matt. 5:37)
These are all hyperbole. Many Christians deny that every last letter of the law applies today (especially in the civic order), go to court, look at things they shouldn’t yet do not gouge out their eyes, and take oaths. What gives?