Yet in spite of this, when they are in the land of their enemies, I will not reject or despise them so as to destroy them and break My covenant with them; for I am the LORD their God.
Here the chapter concludes with gracious promises of the return of God's favour to them upon their repentance, that they might not (unless it were their own fault) pine away in their iniquity. Behold, with wonder, the riches of God's mercy to a people that had obstinately stood it out against the judgments of God, and would never think of surrendering till they were reduced to the last extremity.
Commenting on Leviticus 26:40-46
But I will for their sakes remember the covenant of their ancestors,.... Or rather, "remember to them" (g), to their good and benefit, for their profit and advantage, not for their desert and merit, for any worth or worthiness in them; this covenant respects not the covenant made with Abraham, Isaac, and Jacob, as in Lev 26:42; but with their fathers, either at Sinai, or...
Neither will I abhor them to destroy them utterly - Though God has literally fulfilled all his threatenings upon this people in dispossessing them of their land, destroying their polity, overturning their city, demolishing their temple, and scattering themselves over the face of the whole earth; yet he has, in his providence, strangely preserved them as a distinct people, and in very considerable numbers also.