'Sister' in the Bible

Now a certain man was ill, Lazarus from Bethany, the village of Mary and her sister Martha.

Now Jesus loved Martha and her sister and Lazarus.

When she had said this, she went away and called her sister Mary and told her privately, "The Teacher is here and is calling for you!"

Jesus said, "Remove the stone." Martha, the dead man's sister, told him, "Lord, there must be a stench by now, because he's been dead for four days."

Meanwhile, standing near Jesus' cross were his mother, his mother's sister, Mary the wife of Clopas, and Mary Magdalene.