Matt 1:1
1:1 The family tree of Jesus Christ, David's son, Abraham's son:

David’s son, Abraham’s son. From the beginning of the New Testament, the very beginning, it mentions that Jesus Christ was the son of two men who lived years before He did so it is clear that being someone’s child is not a physical thing. Yet I see people very committed to doing physical things. Your heart as mentioned in the Bible is not a physical thing either but humans are stuck to physical things.