“For a good tree does not bear bad fruit, nor does a bad tree bear good fruit. For each tree is known by its own fruit.” – Luke 6:43-44.
These were the words of Jesus which still ring true to this day. A good tree will carry healthy fruit that will be nourishing to the body while a bad tree will show signs of disease and its fruits will most likely not be edible.
In a similar way when you’re sick your body experiences signs and symptoms which indicate that you might have a medical problem. Signs are physical evidence that your body is fighting off a disease whereas symptoms are internal and can only be perceived by the patient. So how do doctors find the cause? They wait for the lab results, study the medical metrics and try to deduce what might be the source of the disease or infection.
Church health can be gauged the same way.