Read this passage and open each verse for the full verse feed and commentary tools.
48Truly ye bear witness that ye allow the deeds of your fathers: for they indeed killed them, and ye build their sepulchres. 49Therefore also said the wisdom of God, I will send them prophets and apostles, and some of them they shall slay and persecute: 50That the blood of all the prophets, which was shed from the foundation of the world, may be required of this generation; 51From the blood of Abel unto the blood of Zacharias, which perished between the altar and the temple: verily I say unto you, It shall be required of this generation. 52Woe unto you, lawyers! for ye have taken away the key of knowledge: ye entered not in yourselves, and them that were entering in ye hindered.
Luke 11:48-52 (KJV)