As the Scriptural narrative does not contain the information as to the modus operandi by which the Apostles recognized the Patriarchs, we are forced to rely upon our own resources, and to accept that which would appeal to us as the most reasonable solution of the matter, without forming a too positive conclusion. There are two ways by which it would be reasonable to suppose the Apostles were made aware of the identity of the two who appeared with the Lord. In the account it says, "There appeared unto them Moses and Elias, talking with Him." During this conversation it would be the most natural thing in the world for the Lord to address them by their names. Then again, as they were coming down from the mountain with the Lord, He may have informed them as to the identity of the two they saw in the "vision." They did not actually see Moses and Elias but merely a "vision," as stated by the Savior when He said, "Tell the vision to no man until the Son of man be risen from the dead." (`Mat. 27:9`.)