Obedience does not consist in paying God back and thus turning grace into a trade. Obedience comes from trusting in God for more grace - future grace - and thus magnifying the infinite resources of God's love and power.
What we have now is doctors who are actually better technically at what they're doing in their specialty than 30 or 40 years ago, but we lost the relationship, when the doctor would look people in the eye and say, 'I care about you. We can do this together. '