Telling the truth is an important thing to do in life, and I some times wonder how telling the truth compares to what Abraham recommends -- that we never resist anything.  Can we tell the truth without resisting something or someone?  That is a balance.  Perhaps the best way is to tell "the truth" without having to show someone else they are wrong.  Dysfunctional systems flourish in secrecy and in denying the truth, with truth being defined as the basic facts.  It is important in those cases to speak the facts when not doing so is affecting us personally.  Whenever anyone is being affected adversely, it is our ethical obligation to speak the facts about that.