Guidance on the nominative and genitive cases in the phrase of Allah the Exalted: {Dhu al-Jalal} and {Dhi al-Jalal}

Question:
In the second question from this questioner from Tunisia, he says: In the noble verse, and in Surat al-Rahman, Allah the Exalted said: [al-Rahman:27] And in another verse: [al-Rahman:78]. The first is in the nominative case and the second is in the genitive case, so please inform us about the two verses.

Answer:
The first is a description of the Face: [al-Rahman:27]. It describes His Face as being: Dhu al-Jalal (Possessor of Majesty), and He is the Lord, Glorified is He; because the expression "Face" means the whole, His Face is Dhu al-Jalal and He is Dhu al-Jalal .
And the second, the last one: the verse of al-Rahman is a description of the Lord: [al-Rahman:78]. That is to say: it is an attribute of the Lord, a description of the Lord that He is Dhu al-Jalal, and His Face is Dhu al-Jalal . His Face is great, and His Essence is great . He is Dhu al-Jalal from the aspect of His Face, and Dhu al-Jalal from the aspect of His Essence .

The presenter: May Allah reward you, Your Eminence, and may He bless you and your knowledge, and benefit Islam and the Muslims through you.