He did indeed say that. Wasn’t that otherwise called the Olivet discourse?
Christ declared before the so called ‘New’ testament was placed on plant fibers or animal skins He had foretold all things...( Mark 13:23 ) That is why when some take credit for the Holy Scripture one knows they are blowing smoke... because by the time they put their crusty digits on the WORD none could change that so called ‘OLD’... That is also why there is this man made rule about individuals reading with understanding ‘sola scripture’... I mean really now the Heavenly Father allows individuals to read with understanding ... leaves some of the really high mucky - ducks- naked as a new born babe.