The Sabbath was only made (strict) for those who disagreed (as to its observance); But Allah will judge between them on the Day of Judgment, as to their differences.
OdAAu ila sabeeli rabbika bialhikmati waalmawAAithati alhasanati wajadilhum biallatee hiya ahsanu inna rabbaka huwa aAAlamu biman dalla AAan sabeelihi wahuwa aAAlamu bialmuhtadeena
Invite (all) to the Way of thy Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious: for thy Lord knoweth best, who have strayed from His Path, and who receive guidance.
And if ye do catch them out, catch them out no worse than they catch you out: But if ye show patience, that is indeed the best (course) for those who are patient.