Write SQL query to solve given problem: Please give the title of the oldest book published by publisher "Thomas Nelson".. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.title FROM book AS T1 INNER JOIN publisher AS T2 ON T1.publisher_id = T2.publisher_id WHERE T2.publisher_name = 'Thomas Nelson' ORDER BY T1.publication_date ASC LIMIT 1