Origen

Or they then spake of Him in lowly words, as only a great and wonderful man, but as yet proclaimed Him not as the Christ. Yet if any will have it that He was even at the first proclaimed to be Christ, he may say that now He chose that first short announcement of His name to be left in silence and not repeated, that that little which they had heard concerning Christ might be digested into their minds. Or the difficulty may be solved thus: that the former relation concerning their preaching Christ does not belong to the time before His Resurrection, but to the time that should be after the Resurrection; and that the command now given is meant for the time present; for it were of no use to preach Him, and to be silent concerning His cross. Moreover, He commanded them that they should tell no man that He was the Christ, and prepared them that they should afterwards say that He was Christ who was crucified, and who rose again from the dead.