And many other signs truly did Jesus in the presence of his disciples. — More exactly, Yea, and indeed many and other signs did Jesus. (Comp. Note on John 2:11.) We must understand the “signs” not of the proofs of the Resurrection only, but of the works wrought during the whole life. The writer’s narrative is drawing to a close, and he explains the fact that he has recorded so little of a life which contained so much. There were, indeed, many other signs which he, as an eye-witness, remembered, but which it was not within his purpose to relate.
That he refers to the whole work of Christ, and not to the Risen Life only, is clear, because (1) there were not “many other signs” during the forty days; (2) the words “did Jesus” are not applicable to the manifestation to the disciples; (3) the words “in this book” refer to all that has preceded.
It would seem to follow from this that these verses (John 20:30 and John 20:31) are the conclusion of the original Gospel, and that John 21 is to be regarded as a postscript or appendix. We shall find reason for believing that, though an appendix, it proceeded from the hand of the Apostle himself.