I answered their questions 'to the best of my knowledge'. [=I gave the best answers I could based on what I knew, but I might have answered differently if I had known something else]
No one arrived late 'to my knowledge'. [=I am not aware that anyone arrived late, but it is possible that someone arrived late and I don't know about it]
They went on vacation, 'safe in the knowledge' that the farm would be well cared for while they were away.
(..) Captain? When did you begin to suspect her? Not soon enough. How did you know? I guess you can say I got *...knowledge* the danger. Run! Is that music? Where the hell is that coming from? There. I connected the middle box (..)2016 Star Trek Beyond