Translation of the verse 23 from Surah Al-Ahzab : Number of verses 73 - - page 421 - Part 21.
Among the believers are men who have been true to their covenant with Allah [i.e. they have gone out for Jihad (holy fighting), and showed not their backs to the disbelievers], of them some have fulfilled their obligations (i.e. have been martyred), and some of them are still waiting, but they have never changed [i.e. they never proved treacherous to their covenant which they concluded with Allah] in the least.
Among the believers are men true to what they promised Allah. Among them is he who has fulfilled his vow [to the death], and among them is he who awaits [his chance]. And they did not alter [the terms of their commitment] by any alteration -
(33:23) Among the believers there are those who have remained true to the covenant they made with Allah. Among those some of them have fulfilled their vow and others await the appointed time. *39 They have not changed in the least.
*39) That is, "Someone has already offered his life in the way of Allah, and someone is awaiting the time when he will offer it for the sake of his Faith. "