Christians must seek God Himself and truly listen to what He says in His Word. Only then will they have the heart of wisdom to deal with today's challenges.
Spiritually, relying on images leads to shallowness of thought at best and idolatry at its worst. Virtually everything we know about God comes through words.
Faithfulness in a person ultimately rests on his or her trust in God, and if a person is going to be faithful, its because he or she believes what God says.