Answer:
He wrote laws to protect the church
Explanation:
Byzantine Emperor Justinian I was someone who had a strong belief in Christianity and also arts, architecture, and literature.
Because of his beliefs, he wrote laws to protect the church. He rebuilt a lot of churches, the most famous one is Hagia Sophia.
Not only he was protecting Christianity during his reign, but he also wanted to stop paganism. His passion for religion, art, and literature helped him to expand  Christianity.
