Final answer:
In Christianity, the concepts of incarnation and the fullness of time contrast with the idea of Jesus being begotten.
Step-by-step explanation:
In Christianity, the concept of incarnation refers to Jesus Christ taking on human form. It is believed that through his death on the cross, he made it possible for humans to have eternal life in heaven. The fullness of time refers to the specific moment in history when Jesus entered the world to save it. The term 'begotten' is often used in reference to Jesus being the only Son of God. It emphasizes his divine nature. Therefore, the concepts of incarnation and the fullness of time contrast with the idea of Jesus being begotten as they highlight different aspects of his nature and purpose.