Embedded

It is amazing how much scripture is embedded into common parlance. Case in point: Geraldo used the term "writing on the wall" last night. If you're not familiar with the story, it comes from Daniel 5 when God writes a warning on the wall to the king.
There are many more examples, especially from Proverbs. As an aside, "Spare the rod and spoil the child" is not an imperative, but rather an ellipsis. The elliptical words inserted would read thus: [if you] spare the rod and [then you will] spoil the child. Discipline debates notwithstanding, the phrase is well-known and well-used.
What if, just hypothetically thinking aloud, someone insisted that those who support freedom from religion be disallowed to use any scriptural idioms and phrases? It's just a thought.