When it was morning, all the chief priests and the elders of the people (Sanhedrin, Jewish High Court) conferred together against Jesus, [plotting how] to put Him to death [since under Roman rule they had no power to execute anyone];

Early in the morning the chief priests, with the elders and scribes and the whole Council (Sanhedrin, Jewish High Court), immediately consulted together; and they bound Jesus, they took Him away [violently] and handed Him over to Pilate.

Elders

Why are the nations in an uproar [in turmoil against God],
And why do the people devise a vain and hopeless plot?

who by the Holy Spirit, through the mouth of our father David, Your servant, said,

‘Why did the nations (Gentiles) become arrogant and rage,
And the peoples devise futile things [against the Lord]?

as the high priest and all the Council of the elders (Sanhedrin, Jewish High Court) can testify; because from them I received letters to the brothers, and I was on my way to Damascus in order to bring those [believers] who were there to Jerusalem in chains to be punished.

General references

For the wicked cannot sleep unless they do evil;
And they are deprived of sleep unless they make someone stumble and fall.

Then the whole assembly got up and brought Him before Pilate.

and how the chief priests and our rulers handed Him over to be sentenced to death, and crucified Him.