What are the seven books of Old Testament that have no lines poetry in them?

This is a bit of a tricky question, as there's no universal agreement on what constitutes "poetry" in the Old Testament. Some scholars would argue that even prose books like history or law contain poetic elements, while others stick to more strict definitions.

However, based on traditional classifications, the seven books most often cited as containing no poetry are:

1. Genesis: While it has some figurative language, its narrative style is largely prose.

2. Exodus: A blend of law, history, and narrative, but no clear poetic sections.

3. Leviticus: Primarily a collection of laws, with little to no poetic elements.

4. Numbers: Again, primarily focused on law and narrative, with limited poetry.

5. Deuteronomy: Like the others, mostly law and narrative, although some scholars might point to certain passages as poetic.

6. Joshua: A historical book, with a focus on the conquest of Canaan.

7. Judges: A historical account of the judges and their leadership, with a narrative focus.

It's important to note that this is a debated topic, and the categorization of "poetry" in the Old Testament is open to interpretation. Some scholars might include additional books, or argue that certain passages in the listed books actually contain poetic elements.