That held (hoi sunechontes). See note on Luk 8:45; and the note on Luk 19:43 for this verb sunechō. Here alone in the N.T. for holding a prisoner (holding together). The servants or soldiers, not the Sanhedrin.
Mocked (enepaizon). Imperfect active, were mocking, inchoative, began to mock, to play like boys.
And beat him (derontes). Present active participle of derō, to flay, tan, or hide. Literally, “beating.”