Luke 20:2  And spake unto him, saying, Tell us, by what authority doest thou these things? or who is he that gave thee this authority?

Max reads this chapter well.

Luk 20:1  And it came to pass, that on one of those days, as he taught the people in the temple, and preached the gospel, the chief priests and the scribes came upon him with the elders,

Luk 20:2  And spake unto him, saying, Tell us, by what authority doest thou these things? or who is he that gave thee this authority?

Luk 20:3  And he answered and said unto them, I will also ask you one thing; and answer me:

Luk 20:4  The baptism of John, was it from heaven, or of men?

Luk 20:5  And they reasoned with themselves, saying, If we shall say, From heaven; he will say, Why then believed ye him not?

Luk 20:6  But and if we say, Of men; all the people will stone us: for they be persuaded that John was a prophet.

Luk 20:7  And they answered, that they could not tell whence it was.

Luk 20:8  And Jesus said unto them, Neither tell I you by what authority I do these things.

In Matthew we see Jesus directly confirming his authority.

Same Greek word is used: ἐξουσία exousia

Mat 28:18  And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.

Mat 28:19  Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:

Mat 28:20  Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.

Luk 20:9  Then began he to speak to the people this parable; A certain man planted a vineyard, and let it forth to husbandmen, and went into a far country for a long time.

Luk 20:10  And at the season he sent a servant to the husbandmen, that they should give him of the fruit of the vineyard: but the husbandmen beat him, and sent him away empty.

Luk 20:11  And again he sent another servant: and they beat him also, and entreated him shamefully, and sent him away empty.

Luk 20:12  And again he sent a third: and they wounded him also, and cast him out.

Luk 20:13  Then said the lord of the vineyard, What shall I do? I will send my beloved son: it may be they will reverence him when they see him.

Luk 20:14  But when the husbandmen saw him, they reasoned among themselves, saying, This is the heir: come, let us kill him, that the inheritance may be ours.

Luk 20:15  So they cast him out of the vineyard, and killed him. What therefore shall the lord of the vineyard do unto them?

Luk 20:16  He shall come and destroy these husbandmen, and shall give the vineyard to others. And when they heard it, they said, God forbid.

Luk 20:17  And he beheld them, and said, What is this then that is written, The stone which the builders rejected, the same is become the head of the corner?

Luk 20:18  Whosoever shall fall upon that stone shall be broken; but on whomsoever it shall fall, it will grind him to powder.

Read more and note verses 41-44…

Luk 20:41  And he said unto them, How say they that Christ is David’s son?

Luk 20:42  And David himself saith in the book of Psalms, The LORD said unto my Lord, Sit thou on my right hand,

Luk 20:43  Till I make thine enemies thy footstool.

Luk 20:44  David therefore calleth him Lord, how is he then his son?

Are not these also examples of Jesus’ teaching.

Luk 24:44  And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me.

Luk 24:45  Then opened he their understanding, that they might understand the scriptures,

Luk 24:46  And said unto them, Thus it is written, and thus it behoved Christ to suffer, and to rise from the dead the third day:

Luk 24:47  And that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem.

Luk 24:48  And ye are witnesses of these things.