Here "he" refers to Pilate and is a metonym for the soldiers whom he ordered to bring Jesus out. Alternate translation: "Pilate ordered the soldiers to bring Jesus out" (See: [[rc://en/ta/man/jit/figs-metonymy]])
Important people like Pilate sat down when they performed an official duty, while people who were not so important stood up.
# in the judgment seat
This is the special chair that an important person like Pilate sat in when he was making an official judgment. If your language has a special way to describe this action, you can use it here.
This is a special stone platform where only the important people were allowed to go. You can translate this in an active form. Alternate translation: "in a place the people called The Pavement, but" (See: [[rc://en/ta/man/jit/figs-activepassive]])