Luke 20:8
And Jesus said unto them, Neither tell I you by what authority I do these things.
Cross-reference
In Luke 22:68, Jesus similarly refuses to answer hostile questioners, echoing the same principle of not engaging insincere inquiries.
Matthew 21:27 is the parallel account of Jesus' response, recording the same refusal to reveal his authority.
Mark 11:33 records the same exchange: the religious leaders refuse to answer, so Jesus withholds his answer. Parallel narrative.
Proverbs 26:4 advises not answering a fool according to his folly; Jesus avoids a direct answer to their trap, following this wisdom.
Proverbs 26:5 says answer a fool according to his folly; Jesus replies with a question that exposes their folly, fitting this principle.
In Matthew 16:4, Jesus refuses a sign to an evil generation; similarly, here he refuses to give them the answer they demand.