'Away' in the Bible

On the other hand, I am writing a new commandment to you which is true in him and in you, because the darkness is passing away and the true light is already shining.

And the world is passing away with all its desires, but the person who does the will of God remains forever.

And now, little children, remain in him, so that when he appears we may have confidence and not shrink away from him in shame when he comes back.

And you know that Jesus was revealed to take away sins, and in him there is no sin.