Jesusí Authority Questioned

And when he was come into the temple, the chief priests and the elders of the people came unto him as he was teaching, and said, By what authority doest thou these things? and who gave thee this authority? And Jesus answered and said unto them, I also will ask you one question, which if ye tell me, I likewise will tell you by what authority I do these things. The baptism of John, whence was it? from heaven or from men? And they reasoned with themselves, saying, If we shall say, From heaven; he will say unto us, Why then did ye not believe him? But if we shall say, From men; we fear the multitude; for all hold John as a prophet. And they answered Jesus, and said, We know not. He also said unto them, Neither tell I you by what authority I do these things.

Matthew 21:23-27
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Jesus told him, "I am the way, the truth, and the life. No one can come to the Father except through me." (John 14:6)