'Sister' in the Bible

Now a certain man was sick, named Lazarus, of Bethany, the town of Mary and her sister Martha.

Now Jesus loved Martha, and her sister, and Lazarus.

And when she had so said, she went her way, and called Mary her sister secretly, saying, The Master is come, and calleth for thee.

Jesus said, Take ye away the stone. Martha, the sister of him that was dead, saith unto him, Lord, by this time he stinketh: for he hath been dead four days.

Now there stood by the cross of Jesus his mother, and his mother's sister, Mary the wife of Cleophas, and Mary Magdalene.