Jesus and the disciples probably left the region of Caesarea Philippi and Mt. Hermon now and proceeded south toward Jerusalem through Galilee. In view of what lay ahead in Jerusalem, Jesus again prepared them by telling them that He would suffer execution and experience resurrection.
9:30 Jesus' public ministry in Galilee was over. He wanted to pass through that area without further distractions from the multitudes.
9:31 Jesus was concentrating on teaching His disciples during this phase of His ministry. Here He revealed to them for the first time that someone would deliver Him up or hand Him over (Gr. paradidotai) to His enemies. Ultimately God did this, but Judas was the human agent that brought His will to pass. Probably there is an intended contrast between "Son of Man"and "men"in this verse.
". . . in a fallen world men had become so hostile to God that when, as the culmination of his plans for their salvation, he sent to them the Man, their Saviour [sic] and ultimate model, they regarded and treated him as their worst enemy. Men and the Son of Man stood on opposite sides in God's eschatological battle against the powers of evil."224
Mark recorded Jesus saying that He would rise of His own power (active voice). Matthew said Jesus spoke of being raised (passive voice, Matt. 17:23). Probably Jesus said both things. This verse probably summarizes instruction that Jesus gave the disciples as they walked.225
9:32 The disciples did not understand because God withheld understanding from them (Luke 9:45). Initially God may appear to have been working at cross purposes with Himself revealing through Jesus and concealing by hardening the disciples' hearts. The solution seems to be that God was working with the disciples as He had worked with the multitudes through Jesus' parables. If so, the disciples' ignorance was a result of divine blindness that their unbelief produced. Their willingness to remain in ignorance and not ask Jesus to clarify His statement is the evidence of their unbelief. Mark implied that all they gained from this revelation was a sense of sorrow (Matt. 17:23). Similarly we manifest a form of unbelief when we fail to seek clarification of biblical revelation that we find confusing.