He emphasized the Scriptures. He taught them the words of the prophets throughout the Scriptures to  let them know the prophecies concerning the Christ.  Earlier, in His ministry, He stood up in the Synagogue to read from the Scroll of Isaiah as mentioned in Luke 4:21, and He said, “...This day is this scripture fulfilled in your ears.” He emphasized the fulfilment of the Scriptures and that the Scriptures were the revelation of Himself as He ministered to these disciples after His resurrection.