O people of the Book (Jews and Christians)! Believe in what We have now revealed (The Qur’an), confirming your own scriptures, before We obliterate your faces and turn them backward, or lay Our curse on you as We laid Our curse on the Sabbath-breakers: and remember that Allah’s command is always executed.
Meaning:-
Obliterate: destroy utterly; wipe out., erase, rub out
Sabbath: the seventh day of the week, Saturday, as the day of rest and religious observance among Jews and some Christians or any special day of prayer or rest resembling the Sabbath: Friday is the Muslim Sabbath.