C. F. Keil and Franz Delitzsch on Deuteronomy 7:12-26

Deu 7:12-26

The observance of these commandments would also bring great blessings (Deu 7:12-16). “If ye hearken to these demands of right” (mishpatim) of the covenant Lord upon His covenant people, and keep them and do them, “Jehovah will keep unto thee the covenant and the mercy which He hath sworn to thy fathers.” In עקב, for אשׁר עקב (Gen 22:18), there is involved not only the idea of reciprocity, but everywhere also an allusion to reward or punishment (cf. Deu 8:20; Num 14:24). חסד was the favour displayed in the promises given to the patriarchs on oath (Gen 22:16).