‘Make a tree sound and its fruit will be sound; make a tree rotten and its fruit will be rotten. For the tree can be told by its fruit. You brood of vipers, how can your speech be good when you are evil? For words flow out of what fills the heart. Good people draw good things from their store of goodness; bad people draw bad things from their store of badness. So I tell you this, that for every unfounded word people utter they will answer on Judgement Day, since it is by your words you will be justified, and by your words condemned.’