Final answer:
The incorrect thinking about God becoming less of God in order to become man is known as the heresy of Kenosis. Jesus did not become any less divine when He took on human form.
Step-by-step explanation:
The incorrect thinking about God becoming less of God in order to become man is known as the heresy of Kenosis. This belief suggests that when Jesus became a human being, He emptied Himself of His divine attributes or gave up some of His powers. However, this goes against the orthodox Christian understanding of the Incarnation, which teaches that Jesus was fully God and fully man at the same time, without any diminishment of His divinity.
One way to understand this is through the analogy of a glass of water. If you take a glass and fill it with water, the water does not become any less water because it is contained in the glass. Similarly, Jesus did not become any less divine when He took on human form. He was able to fully express His divinity while also experiencing the limitations of being human.