Exegesis of the saying of Allah the Exalted: “And when you said, ‘O Moses, we will never believe in you until we see Allah openly,’” including a mention of the meanings of “lan” (never) and whether it implies perpetuity or not.

He said: meaning, and remember also, O Children of Israel. The address is to those who were in the time of the Messenger (peace and blessings be upon him), but His bestowal upon the community in its beginning is a bestowal upon its end. “Lan” does not imply negation; it implies negation, but does it imply perpetuity, or what does it imply?
The student: What does it imply?
The Shaykh : It does not imply perpetuity unless it is qualified by it, but it has three states: sometimes it is qualified by what indicates a limit, as in His saying: This is clear: if it is qualified by what indicates a limit, it does not indicate perpetuity and does not allow for perpetuity. Sometimes it is qualified by what indicates perpetuity, as in the saying of Allah the Exalted: And the third: that it comes absolute, like “So-and-so will not stand up.”
So, if the context indicates that it implies perpetuity, it is for perpetuity; and if the context indicates that it does not imply it, it is possible. For example: What does this indicate? There is absolutely no perpetuity in it, but the context implies that. The context implies that, yes? So this is the ruling of “lan.” For this reason, Ibn Malik said in al-Kafiyyah:
And if you see negation with “lan” as perpetual, then his statement is to be refuted, and the rest is to be supported.
His saying: “refuted,” because the Mu'tazilah, or rather the Asha'irah, say that “lan” is for perpetuity. And for that reason, they argued with the saying of Allah to Moses: that Allah will not be seen, neither in this world nor in the Hereafter. But their statement is undoubtedly refuted. So, means we will not submit, we will not believe, and we will not acknowledge you for what you brought. “See” means to perceive with the eyes. For this reason, it does not take more than one object, because it is visual sight. Its doer, where is it? Hidden? Hidden by permission, estimated to be: we. Allah is the object, yes? Glory be to Allah, where is the grammar now? With a present tense verb, its doer is hidden? By obligation, estimated to be: we. We said to you: if the pronoun is estimated to be “I” or “you” or “we,” it is obligatory. And if it is “he” or “she”? It is hidden by permission, yes? But... these are self-evident matters, they are not difficult, from the difficult grammatical matters. This is something that someone in the first year of primary school can know, yes. I am not satisfied with you. This is all: whenever the pronoun is estimated to be “I” or “we” or “I,” it is? Hidden by obligation. And if it is estimated to be “he” or “she,” it is hidden by permission. So, this is estimated to be “we,” so it is hidden by obligation.
And his saying: This is a state, or is it an absolute object, meaning seeing openly. When did they say that? It was said that they said that when Moses (peace and blessings be upon him) chose seventy men from among them.