Not sure where this phrase originated. It must be good to have a strong faith.
Recently my cousin died of jaw cancer having lost his only daughter in the last year. His wife was so upset that she told nobody of the funeral and there were only 3 people there (her sister, niece and herself). She must feel so alone and bereft.
Nothing I can say will be able to make things better. Talk of a loving God and life everlasting seem hollow.