Mark 11:29-31

King James Version

²⁹ And Jesus answered and said unto them, I will also ask of you one question, and answer me, and I will tell you by what authority I do these things.

³⁰ The baptism of John, was it from heaven, or of men? answer me.

³¹ And they reasoned with themselves, saying, If we shall say, From heaven; he will say, Why then did ye not believe him?