Adam Clarke on Luke 23:1

The whole multitude - It seems most probable that the chief priests, elders, scribes, and captains of the temple, together with their servants, dependents, and other persons hired for the purpose, made up the multitude mentioned here. The common people were generally favourers of Christ; and for this reason the Jewish rulers caused him to be apprehended in the night, and in the absence of the people, Luk 22:6, and it was now but just the break of day, Luk 22:66.