Luke 4:32 in the King James Version
And they were astonished at his doctrine: for his word was with power.
Context
31 He came down to Capernaum, a city of Galilee. He was teaching them on the Sabbath day,
32 and they were astonished at his teaching, for his word was with authority.
33 In the synagogue there was a man who had a spirit of an unclean demon; and he cried out with a loud voice,