Projection Of Judgment
Jesus' statement on judgment referred to the inevitable judgment --- the self judgment --- that occurs when we judge. Judgment of others and self judgment are the same, because only Oneness exists. All "outside" judgment is a projection of self judgment. So Jesus was giving us a lesson in psychology, teaching us how to recognize the self judgment that almost everyone walking this earth carries and which gets projected out, creating an appearance of the world that is one of heavy judgment of individuals, groups, nations, etc.