In their midst.
‘By what power
Or by what name
Did you do this?’”
καὶ στήσαντες αὐτοὺς ἐν τῷ μέσῳ ἐπυνθάνοντο Ἐν ποίᾳ δυνάμει ἢ ἐν ποίῳ ὀνόματι ἐποιήσατε τοῦτο ὑμεῖς;
The author of Acts indicated that they put the prisoners (καὶ στήσαντες αὐτοὺς) in their midst (ἐν τῷ μέσῳ). They inquired (ἐπυνθάνοντο) by what power (Ἐν ποίᾳ δυνάμει) or by what name (ἢ ἐν ποίῳ ὀνόματι) did they do this (ἐποιήσατε τοῦτο ὑμεῖς)? These religious leaders placed Peter and John in the middle of them like prisoners. They wanted to know where Peter and John got their power and authority. Who were they representing? These religious leaders wanted to know where John and Peter were coming from. Where do your religious leaders get their power or authority?