What is the meaning of al-Shawkani’s statement regarding Allah’s saying, “Upon it are angels, severe and strong,” where he said: “Because Allah created them from His anger”?

Question:
I ask Allah for you, Your Eminence, father. The questioner says: Al-Shawkani (may Allah have mercy on him) said in his tafsir, Fath al-Qadir, regarding the saying of Allah the Exalted: He said: “Severe upon the people of the Fire, harsh toward them; they do not show them mercy when they seek mercy.” Then he said after that: “Because Allah the Exalted created them from His anger.”

Answer:
They become angry for the anger of Allah Mighty and Majestic, and Allah has become angry with the people of the Fire, so they become angry for the anger of Allah.