Deuteronomy 6:25

Merciful. Hebrew, "he will justify us." Chaldean, "reward us." Justice often denotes the mercy which God shews to his people, and the punishment which he inflicts upon their enemies. (Calmet) (Matthew vi. 1.) --- Past, present, and future benefits concur to make the Hebrews observe the commandments. God had rescued them from slavery; (ver. 21,) he had already given them great possessions, and would grant them still more if they would be faithful; as on the other hand, all will be lost if they prove rebellious, ver. 15. (Haydock)