There’s an interesting passage in the New Testament Bible where Jesus asks a young man to follow him. The man replied he has a burial to attend. Jesus said to him: ‘let the dead bury the dead’. Let the Dead Bury the dead as idiom means admonishing somebody. My boss gave me a lecture of the dead burying the dead.
I read into the story of Jacob in the Old Testament. Jacob bamboozled his brother two times, by stealing the birth right of the father. As an Idiom Jacob means one who deceives. During the Journey of life I have met many a Jacob.