'Keeper' in the Bible

And again she bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.

And Jehovah said unto Cain, Where is Abel thy brother? And he said, I know not: am I my brother's keeper?

But Jehovah was with Joseph, and showed kindness unto him, and gave him favor in the sight of the keeper of the prison.

And the keeper of the prison committed to Joseph's hand all the prisoners that were in the prison; and whatsoever they did there, he was the doer of it.

The keeper of the prison looked not to anything that was under his hand, because Jehovah was with him; and that which he did, Jehovah made it prosper.