It’s easy to define a lie: it is a statement the speaker knows is not true. Being truthful is more complex. As Bonhoeffer argued, character matters. A truth told by an untruthful person could be worse than a lie told by a truthful person. And context matters too. What, for example, is the truthful response to a murderer who shows up at your door in search of your friend whom he intends to murder? In Christian perspective, what really matters is whether in our speech and our silence we faithfully represent the reality that God has created and is redeeming.