You have an anointing from the Holy One, and you know the truth.
      II. The apostle indicates to them the mind and meaning with which he wrote to them. 1. By way of negation; not as suspecting their knowledge, or supposing their ignorance in the grand truths of the gospel: "I have not written unto you because you know not the truth,1 John 2:21; 1 John 2:21. I could not then be so well assured of your stability therein, nor congratulate you on your unction from above." It is good to surmise well concerning our Christian brethren; we ought to do so till evidence overthrows our surmise: a just confidence in religious persons may both encourage and contribute to their fidelity. 2. By way of assertion and acknowledgment, as relying upon their judgment in these things: But because you know it (you know the truth in Jesus), and that no lie is of the truth. Those who know the truth in any respect are thereby prepared to discern what is contrary thereto and inconsistent therewith. Rectum est index sui et obliqui--The line which shows itself to be straight shows also what line is crooked. Truth and falsehood do not well mix and suit together. Those that are well acquainted with Christian truth are thereby well fortified against antichristian error and delusion. No lie belongs to religion, either natural or revealed. The apostles most of all condemned lies, and showed the inconsistency of lies with their doctrine: they would have been the most self-condemned persons had they propagated the truth by lies. It is a commendation of the Christian religion that it so well accords with natural religion, which is the foundation of it, that it so well accords with the Jewish religion, which contained the elements or rudiments of it. No lie is of the truth; frauds and impostures then are very unfit means to support and propagate the truth. I suppose it had been better with the state of religion if they had never been used. The result of them appears in the infidelity of our age; the detection of ancient pious frauds and wiles has almost run our age into atheism and irreligion; but the greatest actors and sufferers for the Christian revelation would assure us that no lie is of the truth.