John 8:31
So Jesus said to the Jews who had believed in him, "If you abide by what I teach, you are really disciples of mine,
John 15:6-7
Anyone who does not remain united to me is thrown away like a branch and withers up, and they gather them and throw them into the fire and burn them.
Hebrews 2:1-3
This is why we must give the very closest attention to the message we have heard, to keep from ever losing our hold upon it.
1 John 2:24
Keep what you have heard from the beginning in your hearts; then you will always be in union with the Son and the Father.
1 John 2:27
You still retain in your hearts the anointing with the Spirit that you received from him, and you do not need to have anyone teach you. But just as that anointing of his teaches you about everything, and as it is true and no falsehood, keep in union with him just as it has taught you to do.