Behold, we go up to Jerusalem; and the Son of man shall be betrayed unto the chief priests and unto the scribes, and they shall condemn him to death,
Ver. 18. Behold, we go up to Jerusalem] Behold, as it requires attention (and this was no more than need; for St Luke, Luke 18:34, tells us that they understood none of these things, &c.), so it sets forth our Saviour's forwardness to go this dangerous voyage.