When he entered the temple, the chief priests and the elders of the people came to him as he was teaching, and said, “By what authority are you doing these things and who gave you this authority?” - Matthew 21:23
The leaders of the temple are nervous so they question His credentials. Were it not so sad, it would be ludicrous. Anyone had the right to teach in the temple courtyard. Jesus had done so numerous times already. Now, suddenly, the priestly men of authority want to examine His sources. “By what authority?” Read the full passage and you will see that Jesus does more than answer them.
What authority does Jesus have over our choices of action?