John Piper highlights how President Obama exegetes and applies the Sermon on the Mount:
We cannot rebuild this economy on the same pile of sand. We must build our house upon a rock. We must lay a new foundation for growth and prosperity — a foundation that will move us from an era of borrow and spend to one where we save and invest; where we consume less at home and send more exports abroad.
It’s clear how this interpretation misses the point Jesus makes of the parable: the rock is Jesus’ words.
What’s not so clear is that the same error is made by conservative pastors who use allegorical interpretation. The classic example is Origen saying that every detail in the parable of the Good Samaritan refers to something in Christian theology. No: as Jesus interprets it, the point of the parable is to love others in need.
Common allegorical errors today: the Song of Songs refers to Jesus (not, as it would seem, romantic love), many OT prophecies refer to Jesus (not, as it would seem, the land of Israel).