One that comes to mind for me: "Whatever doesn't kill you makes you stronger" is not always true. Maybe even only half the time!
Are there any phrases you tend to hear and shake your head at?
"God loves you" is fine for me. they are usually simply wishing us happiness in their own way (sure it can be passive-aggressively throw to people they call "sinners" too).
What I really despise is "god has a plan" as words of comfort.
A plan for fucking what? Noahs ark V2? cleverly getting around the "promise not to flood the earth" clause by having greedy assholes pollute the earth in his stead ?
"Ah little 4 year old Andrew would fuck up my plans, better give him cancer... Hm, let's hit Jane with a truck just incase"
I don't appreciate that you somehow think a magic man in the sky planning something so cruel would be of any comfort to me.