It's very hard sometimes to keep quiet when people lie, and manipulate situations to paint you out to be a bad person. But The Bible says "Hold your peace and The Lord will fight for you, you only need to be still." (Exodus 14:14) When you jump to defend yourself or try to clear things up you don't leave God room to fight on your behalf. So let them talk, let them lie, let them manipulate. You just be still. Because when God is for you who can stand against you?