﴿ مِّنَ ٱلْمُؤْمِنِينَ رِجَالٌۭ صَدَقُوا۟ مَا عَٰهَدُوا۟ ٱللَّهَ عَلَيْهِ ۖ فَمِنْهُم مَّن قَضَىٰ نَحْبَهُۥ وَمِنْهُم مَّن يَنتَظِرُ ۖ وَمَا بَدَّلُوا۟ تَبْدِيلًۭا ﴾

“Among the believers are men who have [always] been true to what they have vowed before God; and among them are such as have [already] redeemed their pledge by death, and such as yet await [its fulfillment] without having changed [their resolve] in the least.”

(Of the believers are men who are true) loyal (to that which they covenanted with Allah. Some of them have paid their vow by death (in battle)) such as Hamzah Ibn 'Abd al-Muttalib, uncle of the Prophet (pbuh) and his fellow believers who died fighting, (and some of them still are waiting) they will continue to be loyal until they die; (and they have not altered) the covenant (in the least) by breaking it;