John 8:31
Jesus said therefore to those Jews who believed on him, if you adhere to my doctrine, then will you be my disciples indeed; and ye shall know the truth,
John 15:6-7
if a man abide not in me, he is cast away as withered branches that are gather'd up to be thrown into the fire, where they are burned.
Hebrews 2:1-3
Therefore we ought to give the greater attention to the things we have heard, for fear we should abandon the gospel.
1 John 2:24
adhere therefore to what ye have learnt from the beginning. if you adhere to what ye have heard from the beginning, you will still persist to own both the son and the father.
1 John 2:27
but as the unction which ye have received from him, abides in you, you don't need any instruction: being then fully instructed by his unction, which is true and not fallacious, adhere to what that has taught you.