John 5:9 (KJV)

For an angel went down at a certain season into the pool, and troubled the water: whosoever then first after the troubling of the water stepped in was made whole of whatsoever disease he had.

And a certain man was there, which had an infirmity thirty and eight years.

When Jesus saw him lie, and knew that he had been now a long time in that case, he saith unto him, Wilt thou be made whole?

The impotent man answered him, Sir, I have no man, when the water is troubled, to put me into the pool: but while I am coming, another steppeth down before me.

Jesus saith unto him, Rise, take up thy bed, and walk.

The Jews therefore said unto him that was cured, It is the sabbath day: it is not lawful for thee to carry thy bed.

He answered them, He that made me whole, the same said unto me, Take up thy bed, and walk.

Then asked they him, What man is that which said unto thee, Take up thy bed, and walk?

And he that was healed wist not who it was: for Jesus had conveyed himself away, a multitude being in that place.

Afterward Jesus findeth him in the temple, and said unto him, Behold, thou art made whole: sin no more, lest a worse thing come unto thee.