Human ego is likely the foremost obstacle to effective missions.
Therefore, missionaries must be challenged to define who they are in relationship to God. Study of 2 Cor. First, Paul may be speaking of his ministry as a treasure. The passage contrasts the spiritual blindness of unbelievers to the light of the gospel, which enables Christian evangelists to become beacons of light. Clay jars were imperative to families in the ancient world because they were used to carry water from the local well.