Sforno on Leviticus 26:9/ספורנו על ויקרא כ״ו:ט׳

1ופניתי אליכם, after the destruction of the gentile nations, as predicted by Jeremiah 46,28 “I will totally wipe out all the nations…but I will not wipe you out totally.”

2והקימותי את בריתי, the covenant first mentioned in Genesis 17,7 to be “your G’d and that of your descendants after you.”

3אתכם, I will maintain it with you in your own right, because of your merit, not just because I remember having sworn to keep faith with your illustrious forefathers. This promise has been repeated in Ezekiel 37,27 as an eternally valid covenant, as well as in Isaiah 54,10 “My covenant of peace will never falter.”