Romanos 4

Ahora bien, a aquel que trabaja, el jornal no se le cuenta como gracia, sino como deuda;

Empero al que obra, no se le cuenta el salario por merced, sino por deuda.

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

Now to him who works, the reward is not counted as grace, but as something owed.