But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.
Matthew 5:37
King James Version (public domain)
Traditionally attributed to Matthew · 1st century AD · One of the twelve apostles of Jesus; tax collector by trade
Context
35Nor by the earth; for it is his footstool: neither by Jerusalem; for it is the city of the great King.
36Neither shalt thou swear by thy head, because thou canst not make one hair white or black.
37But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.
38Ye have heard that it hath been said, An eye for an eye, and a tooth for a tooth:
39But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.