And be not like her who undoes the thread which she has spun after it has become strong, by taking your oaths a means of deception among yourselves, lest a nation may be more numerous than another nation. Allah only tests you by this [i.e. who obeys Allah and fulfills Allah's Covenant and who disobeys Allah and breaks Allah's Covenant]. And on the Day of Resurrection, He will certainly make clear to you that wherein you used to differ [i.e. a believer confesses and believes in the Oneness of Allah and in the Prophethood of Prophet Muhammad SAW which the disbeliever denies it and that was their difference amongst them in the life of this world].