Acts 4:8, 13

Then Peter, filled with [the power of] the Holy Spirit, said to them, “Rulers and elders of the people [members of the Sanhedrin, the Jewish High Court]

Now when the men of the Sanhedrin (Jewish High Court) saw the confidence and boldness of Peter and John, and grasped the fact that they were uneducated and untrained [ordinary] men, they were astounded, and began to recognize that they had been with Jesus.