Government vs Religion: Must U.S. Postal Worker Deliver Mail on the Sabbath?

[sear]

"No right is absolute. Conversely, no government authority is absolute." lawyer, law Professor and former ACLU head Nadine Strossen

Where do we draw the line? If a religious believer wishes for First Amendment reason to keep the Sabbath holy, should that believer find a line of work that doesn't require such scheduling?
In this case did the applicant disclose the 6 day per week scheduling availability?

US Supreme Court to consider religious discrimination case​

The case involves a postal carrier who says he cannot work on Sunday due to his religious beliefs.

A lower court had previously thrown out Gerald Groff’s case, arguing it would create "undue hardship" to exempt him from Sunday work

The United States Supreme Court has agreed to hear an appeal by a former mail carrier in Pennsylvania who accused the US Postal Service of religious bias after being reprimanded for refusing to deliver packages on Sundays.
The justices took up Gerald Groff’s case on Friday after lower courts dismissed his claim that the Postal Service violated federal anti-discrimination law by refusing to exempt him from working on Sundays, when the evangelical Christian observes the Sabbath. Those courts found Groff’s demands placed too much hardship on his co-workers and employer.

US Supreme Court to consider religious discrimination case

The case involves a postal carrier who says he cannot work on Sunday due to his religious beliefs.

www.aljazeera.com

Where should the line be drawn?
And where will the Roberts court draw it?

ref:

B. O. R. ARTICLE #1: Ratified December 15, 1791
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.​

 

[Borg Refinery]

What about going postal on the sabbath?




(But only if it's the black kind..)

(Arguably the cheesiest rock song ever written)

 

[sear]

From BR #2:


I've not yet reached a final conclusion here BR #2. BUT !!
The Sorities Paradox implications are obvious to me.
a) An employee that's both able and willing to meet 100% of the job requirements including scheduling should be considered eligible for that employment.
b) An applicant that's unwilling to meet any of the job requirements including scheduling should not be considered a viable candidate for that job.

So where do we draw the line? AND !!

Should it matter if the applicant declares before being hired that he's not available on the Sabbath? Obviously an NFL football fan that obtains tickets for the Superbowl (played on Sunday) might want the day off, so he can attend the game. But if that employee has years of tenure, and suddenly develops aversion to working on Sunday, should the matter be decided with religious overtones, even if none actually apply in his case?

 

[Shiftless2]

Obviously an NFL football fan that obtains tickets for the Superbowl (played on Sunday) might want the day off, so he can attend the game.

What happens if it's a player who suddenly becomes "born again"? Should the league reschedule their games so he doesn't have to play on Sunday? Or should his team just say "been nice knowing you"?