There is a play between this word and ἐξουσιασθήσομαι be brought under the power, which can hardly be accurately conveyed to the English reader. The nearest approach to it is: “all things are in my power, but I shall not be brought under the power of any.”
Will - be brought under the power (ἐξουσιασθήσομαι)
From ἐξουσία power of choice, permissive authority. See on Mar 2:10. This in turn is derived from ἔξεστι it is permitted. See above on are lawful. This kinship of the two words explains the play upon them.