If God created the first and only human beings, how did future generations procreate?
The Bible says that Adam “begat sons and daughters” with Eve. (Genesis 5:4, American Standard Version) Family trees in the Holy Scriptures often list only names of sons, not daughters, so we are only told of the names of Adam’s sons, yet we know he also had daughters. The first generations had sexual relations with close family members; they often married their siblings. For example, Abraham’s wife, Sarah, was his half-sister. After the Earth had enough human population, God forbade people to continue with incest. So we are all a huge family. This was how the human line extended to this day.