father of lies 谎言之父；神父的谎言；谎言始祖

【例句】
I came to make peace with you, even if you're the father of lies. I want things to be as they were.
我是来和你讲和的，尽管你是谎言之父。我想一切都和以前一样。

When he lies, he speaks his native language, for he is a liar and the father of lies.
他说谎是出于自己，因他本来是说谎的，也是说谎之人的父。