Luke
Acts 12:19ESV·traditional attribution

And after Herod searched for him and did not find him, he examined the sentries and ordered that they should be put to death. Then he went down from Judea to Caesarea and spent time there.

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of Peter's deliverance out of prison, by which the design of Herod against him was defeated, and his life preserved for further service, and a stop given to this bloody torrent. Now, I. One thing that magnified his deliverance was that it was a signal answer to prayer (Act 12:5): Peter was kept in prison with a great deal of...

Commenting on Acts 12:5-19

John Gill Reformed Baptist @doctorgill

And when Herod had sought for him and found him not,.... Neither in the prison, nor in any part of the city: he examined the keepers; of the prison, and those that were upon the watch, whether they had not been accessary to his escape: and commanded that they should be put to death: or brought forth, not before a judge to be tried and...

Albert Barnes Presbyterian @notesbybarnes

Verse 19. He examined the keepers. The soldiers who were entrusted with his custody. Probably only those who had the special care of him at that watch of the night. The word examine here means to inquire diligently, to make investigation.