Take some time to listen to Max McLean read this speech.
It is an amazing confirmation of how much of Israel’s history of faith Stephen one of the first Deacons in the church actually knew and was able to effectively articulate.
Also note his boldness.
Act 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: 53 Who have received the law by the disposition of angels, and have not kept it.
Act 7:54 When they heard these things, they were cut to the heart, and they gnashed on him with their teeth. 55 But he, being full of the Holy Ghost, looked up stedfastly into heaven, and saw the glory of God, and Jesus standing on the right hand of God, 56 And said, Behold, I see the heavens opened, and the Son of man standing on the right hand of God. 57 Then they cried out with a loud voice, and stopped their ears, and ran upon him with one accord,