John Wesley on Isaiah 65:8

Thus, &c. - These word's may be conceived as a gracious answer from God to the prophet, pleading God's covenant with Abraham, Isaac, and Israel. To this God replies, that he intended no such severity. His threatening should be made good upon the generality of this people. Blessing - But yet, as in a vineyard, which is generally unfruitful, there may be some vine that brings forth fruit, and has the hopes of new wine in the cluster, and as to such, the gardener bids his servant destroy it not, for there is in them what speaks God's blessing. So - So (saith God) will I do for my servants sake, that I may not destroy them all, for the sake of my servants, Abraham, Isaac, and Jacob.