Where did Jesus tell the Twelve that all things written by the prophets about the Son of Man would be accomplished?

In Luke 18:31, near Caesarea Philippi at the headwaters of the Jordan River, below Mount Hermon, Jesus told the Twelve, 'Behold, we go up to Jerusalem, and all things that are written by the prophets concerning the Son of Man shall be accomplished.'

Les explains that this statement appears in Luke 18:31, toward the end of Christ's earthly ministry, in the area of Caesarea Philippi, the headwaters of the Jordan River at the foot of Mount Hermon. Jesus told the Twelve they were going up to Jerusalem, where all things written by the prophets about the Son of Man would be accomplished. It had not happened yet, but it would: He would be delivered to the Gentiles, mocked, spitefully entreated, and spitted on.

Luke 18:31

Then he took unto him the twelve, and said unto them, Behold, we go up to Jerusalem, and all things that are written by the prophets concerning the Son of man shall be accomplished.

Where and when did Jesus tell the twelve about His coming death and resurrection in Luke 18?

In Luke 18:31, Jesus took the twelve aside in northern Israel at the headwaters of the Jordan River, at the end of His three years of earthly ministry, just before going down to Jerusalem for the final days before His crucifixion. There He foretold His death and resurrection.