Answer:
This professional would always treat his patient with kindness, respect for his beliefs and worldviews, understanding, calm and would not try to force his clients to believe what he believes.
Step-by-step explanation:
The golden rule is a concept that states that each person should treat others as he would like himself to be treated and that each person should not treat others the way he would not like himself to be treated.
A mental health professional with Christian beliefs would use this rule in treating his patients if he treated his patients with kindness, respect, calmness and understanding, even if his clients did not share Christian beliefs and had a different worldview. In addition, this professional would respect the patient's beliefs and would not try to impose his thoughts on the patient.