Imprisoned and beat (ημην φυλακιζων κα δερων). Periphrastic imperfect active of φυλακιζω (LXX and late Koine, here alone in the N.T.) and δερω (old verb to skin, to beat as in Matthew 21:35 which see).

In every synagogue (κατα τας συναγογας). Up and down (κατα) in the synagogues.