Долгу

4 Воздая́ние де́лающему вменяется не по ми́лости,

4 [Retaliation, Retribution] [doer, doing, to the doer, to the one doing] вменяется [never, not] [along, by, in, on, to, unto] [grace, graces, kindness, mercy],

но по долгу.

[but, yet] [along, by, in, on, to, unto] долгу.

Now to him that worketh is the reward not reckoned of grace,
but of debt.
Romans 4:4 KJV