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.

 His object in writing is that they may not sin. There is a two-fold connection of thought here--with what has gone before and with what comes afterwards. There is a two-fold danger that they may indeed think lightly of sin. 