Adam Clarke on John 11:47

Then gathered the chief priests and the Pharisees a council - The Pharisees, as such, had no power to assemble councils; and therefore only those are meant who were scribes or elders of the people, in conjunction with Annas and his son-in-law Caiaphas, who were the high priests here mentioned. See Joh 18:13, Joh 18:24.

What do we? - This last miracle was so clear, plain, and incontestable, that they were driven now to their wit's end. Their own spies had come and borne testimony of it. They told them what they had seen, and on their word, as being in league with themselves against Jesus, they could confidently rely.