The documentary hypothesis is a theory about how the first five books of the Jewish and Christian Bible were written. These books include Genesis, Exodus, Leviticus, Numbers, and Deuteronomy. The theory suggests that these books were not written by one person or at one time, but were actually created by a group of people over a long period of time.
To help explain this theory, let's imagine you are making a cake. You need a lot of ingredients like flour, sugar, eggs, and milk. Now, imagine each of these ingredients was made by a different person, and they weren't all made at the same time. One person made the flour, another person made the sugar, and so on. When all the ingredients are ready, you mix them together to make the cake.
Now, think of the first five books of the Bible as that cake. Each book has different stories and laws, but they are all mixed together. The documentary hypothesis suggests that different people, or groups of people, wrote these stories and laws over time. Then, they were all mixed together to make the books we have today.
The theory says that there were at least four different sources for these books: J, E, D, and P. J stands for "Jahwist", a German word for "Yahwist". This source used the name Yahweh for God and focused on stories about people. E stands for "Elohist", which used the name Elohim for God and focused on stories about nature. D stands for "Deuteronomist", which focused on laws and reform. P stands for "Priestly", which focused on laws about worship and sacrifice.
Think of these sources like different chefs making different parts of the cake. The Jahwist chef might have made the story of Adam and Eve, while the Elohist chef made the story of Noah and the flood. The Deuteronomist chef focused on the Ten Commandments, while the Priestly chef made the laws about sacrifice and worship.
When all of these sources were mixed together, we got the first five books of the Bible as we know them. Of course, this is just a theory, and not everyone agrees with it. But it helps us understand how these important books were created over time by different people with different ideas and beliefs.