6. That is, you should note it well that it is We Who have sent down this zikr. Thus it is not Our Messenger whom you are calling insane but in fact this abusive remark applies to Us. Moreover, you should know that it is Our Word and We are preserving it. Therefore, you can do no harm to it, nor can you discredit it by your ridicules, taunts and objections, nor can you hamper its progress. Whatever you may do against it, no one will ever be able to change or tamper with it.