'Companion' in the Bible

A man who is all alone with no companion, he has no children nor siblings; yet there is no end to all his toil, and he is never satisfied with riches. He laments, "For whom am I toiling and depriving myself of pleasure?" This also is futile and a burdensome task!

For if they fall, one will help his companion up, but pity the person who falls down and has no one to help him up.