'Abide in Him' in the Bible

As for you, the anointing which you received from Him abides in you, and you have no need for anyone to teach you; but as His anointing teaches you about all things, and is true and is not a lie, and just as it has taught you, you abide in Him.

Now, little children, abide in Him, so that when He appears, we may have confidence and not shrink away from Him in shame at His coming.

But whoever has the world’s goods, and sees his brother in need and closes his heart against him, how does the love of God abide in him?

By this we know that we abide in Him and He in us, because He has given us of His Spirit.