'Authority' in the Bible

Then the Jews put this question to him: What sign of authority have you to give us, seeing that you do these things?

And he has given him authority to be judge because he is the Son of man.

I have come in my Father's name, and your hearts are not open to me. If another comes with no other authority but himself, you will give him your approval.

For I have not said it on my authority, but the Father who sent me gave me orders what to say and how to say it.

Even as you gave him authority over all flesh, to give eternal life to all those whom you have given to him.