For as before the Resurrection it was necessary that many should be done, in order that they might believe that He was the Son of God, so was it also after the Resurrection, in order that they might admit that He had arisen. For another reason also he has added, “In the presence of His disciples,” because He conversed with them alone after the Resurrection; wherefore also He said, “The world seeth Me no more.” ( c. xiv. 19 .) Then, in order that thou mayest understand that what was done was done only for the sake of the disciples, he added,