TL

“So according to your train of thought, Christ did not ‘take’ authority. Does he therefore also NOT HAVE ANY AUTHORITY? “

Mark,
Christ as the God/Human is far above and beyond human ideas of authority. He is the originator of it. Christ always had and has all authority and power beyond anything we can imagine. But Christ did not choose to manifest authority (as we think of it) while among us. He became as one of us, so that He could save and heal us in order to bring us into Himself. He wants us to become part of Him. And as part of Him sitting with Him in the heavenlies we will be able to judge the angels.

Whose first, whose second, who get’s to decide or initiate, who get’s the glory or preeminence, are all worldly thoughts far below the sight and insight that God would have for us.