«وَلَكُمْ فِي الْقِصَاصِ حَيَاةٌ»
In just retribution there is life for you.
The striking connection between retribution and life communicates a substantial social principle: proportionate justice can deter killing and protect lives. Dense meaning in few words is a hallmark of concision through compression (ījāz al-qaṣr).
Brevity is valuable only if the intended meaning remains accessible. Omitting a necessary qualification so that the statement becomes misleading is defective omission, not eloquence.