For grace you have been saved through faith. And this is not your own doing; it is a gift of God, not a result of works, so that no one may boast. For we are his workmanship, created in Christ Jesus for good works. Which God prepared beforehand, that we should walk in them.

But its so simple. Are you the sort of man who would put the poison into his own goblet or his enemies? Now a clever man would put the poison into his own goblet because he would know only a great fool would reach for what he was given. I am not a great fool so I clearly cannot chose the wine in front of you. But you must have known I was not a great fool, you would have counted on it so I clearly cannot chose the wine in front of me.