John 11:19 Meaning

17Then when Jesus came, he found that he had lain in the grave four days already.

18Now Bethany was nigh unto Jerusalem, about fifteen furlongs off:

19And many of the Jews came to Martha and Mary, to comfort them concerning their brother.

20Then Martha, as soon as she heard that Jesus was coming, went and met him: but Mary sat still in the house.

21Then said Martha unto Jesus, Lord, if thou hadst been here, my brother had not died.