question #3 Sahih al-Bukhari 7554, Book 97, Hadith 179 : What significance does the writing of Allah’s mercy and anger have in Islamic theology?

I heard Allah’s Messenger (ﷺ) saying: “Before Allah created the creations, He wrote a Book (wherein He has written): “My Mercy has preceded my Anger.’ And that is written with Him over the Throne.”(seeHadith 3194)