Answer:
His death
Step-by-step explanation:
He is foreshadowing his death. He says "lifted up", something they did during his death. They lifted him up on a cross and crucified him.
Foreshadowing - Is a warning or tip to the reader of something that is going to happen in the future.
So him saying that he is going to be lifted up, is him tipping the reader off that someone or something will be lifted up, in some sort of bad manner.