Johannes 18:19

The high priest . . . asked Jesus of his disciples, and of his doctrine--probably to entrap Him into some statements which might be used against Him at the trial. From our Lord's answer it would seem that "His disciples" were understood to be some secret party. (Also see on Mar 14:54.)

Hitherto this evangelist has recorded little of the history of Christ, only so far as was requisite to introduce his discourses; but now that the time drew nigh that Jesus must die he is very particular in relating the circumstances of his sufferings, and some which the others had omitted, especially his sayings. So far were his followers from being ashamed of his cross, or endeavouring to conceal it, that this was what, both by word and writing, they were most industrious to proclaim, and gloried in it. This chapter relates, I. How Christ was arrested in the garden and surrendered himself a prisoner (Joh 18:1-12). II. How he was abused in the high priest's court, and how Peter, in the meantime, denied him (Joh 18:13-27). III. How he was prosecuted before Pilate, and examined by him, and put in election with Barabbas for the favour of the people, and lost it (Joh 18:28-40).

18:19 The high priest began asking Jesus questions, but his inquiry was contrary to Jewish legal procedure. In Jewish court, the priest did not ask questions directly of the defendant but accumulated evidence from witnesses to establish guilt (see Num 35:30; Deut 17:6; 19:15; cp. Matt 18:16). If Jesus said anything incriminating, Annas would later use it to testify against him at Jesus’ trial. He was attempting to follow Roman practice by making Jesus incriminate himself, rather than gathering evidence through witnesses as Jewish law demanded.