We think liars are dishonest lawyers, cheating used-car salesmen, and drug addicts. They are instead pastors, news commentators, and doctors of philosophy. Liars can also be silent. That is, what defines the liar is not just the speaking of lies but the loving of lies.
God is true and every man a liar. Liars, however, dress like their father. That is, just as the Devil appears as an angel of light, so he and his minions appear as tellers, indeed lovers, of the truth.