No work today "because"

“Remember that there’s no work today because it’s Sunday.”

I filled the blank with “because” however I am trying to understand why it is (or would be?) wrong to say:
“Remember that there’s no work today for it’s Sunday.”

I ask this because sometimes we use “for” in similar circumstances.

“The solution is to not forget the traffic rules, for it is punishable if you violate them”

Maybe that is a wrong example but I hope you understand what my doubt is?

Thank you

oh maybe
“Remember that there’s no work today for it’s a Sunday.”

might make sense?

“Remember that there’s no work today because it’s Sunday.”

“Remember that there’s no work today for it is Sunday.”
because and for
because means: for the reason that
‘Why did you do that?
Because boss wanted me to.
For: because of; or as a result of
He spent ten years in prison for murder.
I do not eat meat for various reasons. (Cambridge Dictionary)

Thank you (Thanks to you I found out that I searched and found the online version of the Cambridge dictionary).

Re: my doubt, there are times when we use “for” in place of “because”.

For e.g. the following is from the Cambridge online dictionary.

"She remained silent, for her heart was heavy and her spirits low. "

But Cambridge dictionary itself reports that this usage is now considered old-fashioned or used only in literary (poetic?) circles.

Thanks again

[color=blue]Yes, they’re pretty much the same but “for” is used mostly in written formal context.

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