1 John 2:24-27

See to it that what you have heard from the beginning remains in you. And if what you have heard from the beginning remains in you, then you will also remain in the SON, and in the FATHER. For this is the promise which he promised us: eternal life. I am writing these things to you concerning those who would lead you astray. As for you, the anointing you received from him remains in you, and you do not need for anyone to teach you. For as his anointing teaches you about all things, and that anointing is true, not counterfeit - so just as it taught you - remain in him.