'Lie' in the Bible

If we say that we have fellowship with him and walk in the darkness, we lie, and don't tell the truth.

I have not written to you because you don't know the truth, but because you know it, and because no lie is of the truth.

As for you, the anointing which you received from him remains in you, and you don't need for anyone to teach you. But as his anointing teaches you concerning all things, and is true, and is no lie, and even as it taught you, you will remain in him.