Origen

“ But if now, for the first time, the Apostles learn from Jesus the things that were about to happen unto Him, namely, that the elders will plot against Him, and that He will be killed, and that after these things, on the third day, He will rise from the dead,—what necessity is there for supposing that those who had been taught by the Apostles concerning Jesus knew them before, or that although Christ was announced to them He was announced to them by way of an introduction which did not clearly elucidate the things concerning Him? ”

“ For our Saviour wished, when He enjoined the disciples to tell no man that He was the Christ, to reserve the more perfect teaching about Him to a more fitting time, when to those who had seen Him crucified, the disciples who had seen Him crucified and risen could testify the things relating to His resurrection. ”