Tafsir of Al-Mu'minoon 23:16

Then (again), surely you will be resurrected on the Day of Resurrection. means, you will be created anew

ثم الله ينشء النشٲة اﻻخرة

and then Allah will bring forth the creation of the Hereafter. (29:20), means, the Day of Return, when the souls will be restored to their bodies and all of creation will be brought to account. Everyone will be rewarded or punished according to his deeds -- if they are good then he will be rewarded, and if they are bad then he will be punished