Some of the Holy Quran’s verses such as the verse 47 Surah Al-Anbiyaa are about the quality and way of measuring the deeds in the day of resurrection. Various questions have been asked about the way of calculating the deeds and the number of the people in the day of resurrection. The paper intends to propose the viewpoints of the Fariqain’s commentators and Quran researchers and also to compare their viewpoints on “means of weighing the deeds”, “the people whose deeds are calculated and weighed”, and “the reason of weighing the deeds by God”. Measuring the deeds in the day of resurrection is inevitable and the good deeds are measured. Assigning plenty of justice-based criteria, God will make a precise divine calculation to pursuit justice and to yield rewards to the righteous people. The criteria being mentioned in the narrations imply the meaning of the weight of the good deeds’ reward and the value of the good deeds’ effects which have rightly been judged and fairly been calculated with committing injustice to nobody. Also, the unbelievers’ deeds will not be weighed because of being worthless and insignificant.