﴿وَلَكُمْ﴾
And for you.
By foregrounding the addressees, the verse presents qiṣāṣ not merely as a punitive mechanism but as a benefit to the community. Legal retribution is governed and limited, while protection of life is its wider social purpose.
The prepositional expression indicates entitlement or benefit. Before the main noun appears, listeners understand that the statement concerns a benefit accruing to them.