'Abide in Him' in the Bible

but the unction which you have received from him abides in you; and you have no need that any one should teach you, unless the same unction teaches you concerning all things, and is truth, and is no lie: and as it has taught you, you will abide in him.

And now, little children, abide in him, that when he shall appear, we may have confidence, and may not be put to shame by him, at his coming.

By this, we know that we abide in him, and he in us, because he has given us of his Spirit.