Charles Ellicott Commentary Isaiah 37:35

"For I will defend this city to save it, for mine own sake, and for my servant David`s sake." — Isaiah 37:35 (ASV)

For mine own sake ... —The words set forth, as it were, the two motives of Jehovah’s action: for His own sake, as asserting His majesty against the blasphemy of the Assyrians; for David’s sake, as mindful of the promise made to him, showing, in the spirit of the second commandment, that the good as well as the evil influences of humankind survive, and that a later generation may profit by the good that was in its predecessor, as well as suffer for its guilt.