na farnwch fel na'ch bernir

== Welsh == === Etymology === From Matthew 7:1-3, in the Bible. === Adjective === na farnwch fel na'ch bernir (idiomatic) judge not, that ye be not judged ==== Related terms ==== a farno, ef a fernir (“who judges, let him be judged”) === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “barnu”, in Gweiadur: the Welsh–English Dictionary, Gwerin