Ye ought to search these things] The Savior has just quoted Isaiah 54 so he is commanding us to search the writings of Isaiah. Elder Bruce R. McConkie wrote: “If our eternal salvation depends upon our ability to understand the writings of Isaiah as fully and truly as Nephi understood them-and who shall say that such is not the case!-how shall we fare in that great day when with Nephi we shall stand before the pleasing bar of Him who said: ’Great are the words of Isaiah’? ...”