In John 12:20-22 some Greeks come up to Philip and ask him if they can see Jesus. The disciples pass along this request to Jesus in v22 and all the sudden in v23 he replies that the hour has come for the Son of Man to be glorified and then he continues seemingly to predict his death.
How is this reply connected to the request Jesus receives and why does Jesus all the sudden know that "the hour has come"? These men don't necessarily seem like they mean to harm him.