Matthew 5 v 37
But let your communication be, Yes, yes; No, no: for whatsoever is more than this comes of evil.
Matthew 7 v 12
Therefore all things whatsoever you would that men should do to you, do you even so to them: for this is the law and the prophets.
Matthew 10 v 11
And into whatsoever city or town you shall enter, enquire who in it is worthy; and there abide till you go thence.