(Qaaf) 50 : 34
ادْخُلُوهَا بِسَلَامٍ ۖ ذَٰلِكَ يَوْمُ الْخُلُودِ
You enter it with Peace; that is the Day of Eternity.
The believer will enter into the house of peace—Paradise—at the age of thirty-three years in the same color and shape. There, his color won’t 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 into 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.