Acts 7:51-52, Acts 3:14-15
Stephen said that you, the Jews, have killed Christ, the righteous, whom the prophets foretold. (Acts 7:51-52, Acts 6:14-15)
Acts 7:51 Ye stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Ghost: as your fathers did, so do ye. 52 Which of the prophets have not your fathers persecuted? and they have slain them which shewed before of the coming of the Just One; of whom ye have been now the betrayers and murderers:
Acts 6:14 For we have heard him say, that this Jesus of Nazareth shall destroy this place, and shall change the customs which Moses delivered us.
15 And all that sat in the council, looking stedfastly on him, saw his face as it had been the face of an angel.
Jesus is the righteous, the Christ, prophesied in the Old Testament. (Acts 3:14-15)
Acts 3:14 But ye denied the Holy One and the Just, and desired a murderer to be granted unto you; 15 And killed the Prince of life, whom God hath raised from the dead; whereof we are witnesses.