(Qaaf) 50 : 34
ادْخُلُوهَا بِسَلَامٍ ۖ ذَٰلِكَ يَوْمُ الْخُلُودِ
You enter in it with Peace; this is the Day of Eternity.
Believer will enter in the house of peace-Paradise-at the age of thirty three years in same colour and shape. There his colour won’t become fade or his age won’t increase or he won’t die or any type of change won’t affect him. That is the meaning of ‘the Day of Eternity’ mentioned in the verse. Those who entered in the Paradise will never wish to go out from it as explained in verses 18: 107-108. See explanation 37: 58-60; 44: 51-57; and 76: 13, 21-22.