'With Authority' in the Bible

for he taught them with authority, and not like their scribes.

And they were all amazed, so that they questioned among themselves, saying, "What is this? A new teaching? For with authority he commands even the unclean spirits, and they obey him."

and they were astonished at his teaching, for his word was with authority.

Amazement came on all, and they spoke together, one with another, saying, "What is this word? For with authority and power he commands the unclean spirits, and they come out."