Psalm 37:30 his (Righteous) tongue talketh of judgment. - Not only is it a great idea to seek council from the righteous because their mouth speak wisdom, but also because their tongue speaks judgement. There is no guessing when the righteous speak. The righteous speaks clearly. he will speak the truth, in love, in a judicial way. In other words he will not hem & haw about, he will, with judgement, tell the truth.