Acts 4:3-7

3So they arrested them and put them in jail until the next day, because it was evening.

4But many of those who heard the message [of salvation] believed [in Jesus and accepted Him as the Christ]. And the number of the men came to be about 5,000.

5On the next day, their magistrates and elders and scribes (Sanhedrin, Jewish High Court) were gathered together in Jerusalem;

6and Annas the high priest was there, and Caiaphas and John and Alexander, and all others who were of high-priestly descent.

7When they had put the men in front of them, they repeatedly asked, “By what sort of power, or in what name [that is, by what kind of authority], did you do this [healing]?”