Luke 4:32

32andκαὶthey were astonishedἐξεπλήσσοντοatἐπὶtheτῇteachingδιδαχῇof Himαὐτοῦ,forὅτιwithἐνauthorityἐξουσίᾳwasἦνtheὁmessageλόγοςof Himαὐτοῦ.

And they were astonished at His teaching, because His word was with authority.