What is the wisdom behind the creation of the recording angels?

Question:
He asks: What is the wisdom behind the creation of the recording angels, when Allah (Mighty and Majestic) knows everything?

Answer:
Answer: The wisdom is to establish this against them so that they do not deny it. (And We have assigned to every human being his deeds, which We have placed upon his neck, and We will bring out for him on the Day of Resurrection a record which he will meet spread out. Read your record; sufficient for you today as an accountant over yourself is your own self). This serves to establish the proof against this servant who did good or did evil, for this is preserved for him in his record.