Contradiction with John 18:20
Jesus states that He spoke openly to the world and always taught in synagogues and the temple, suggesting transparency rather than withholding information.
John 18:20: Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing.
Contradiction with Matthew 5:37
Jesus advises letting your 'yes' be 'yes,' and your 'no,' 'no,' pointing to straightforwardness in speech, seeming to contrast with evading a direct answer.
Matthew 5:37: But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.