I’d be happy if the Rabbi or any of the readers who have read The First Being Found could explain the answer to me, because at the moment I have no way to read the book.

For the benefit of this nice site (which I’m browsing now for the first time), I’ll give the overview that the nice bot made for me of “the fifth conversation in The First Being Found” (after I asked for “a more detailed summary, even a really detailed one”).

I haven’t read the book, and it could be the summary is not exhaustive, but one thing is certain—it’s nice! In any case, the answer to the question is probably in sections 5 and 7.
There is also an article available for download online whose content is apparently equivalent to what is in the book—search for “Deism and Theism: From a Philosophical God to Religious Commitment, Michael Abraham”).

[One second before that—if I may add a question:
Is there some article that summarizes all the small emphases from Jewish literature in support of the argument from testimony (I already found such things in a few books, like the interesting emphasis brought here)? If not—that’s strange, and if there is—it’s strange that it isn’t mentioned on Wikipedia in its entry, or at least on the talk page.]

Good luck!

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The conversation is divided into three parts: (a) faith and revelation, (b) the factual discussion—the reliability of the tradition, (c) the normative discussion—the validity of the revelation.

Part A — Faith and Revelation
A. What is religious faith?

The central distinction: religious faith is not only a philosophical statement (“the existence of God” as a factual claim) but also a practical commitment to norms and commandments. Religious faith includes a factual component (the statement that God exists) and a practical/normative component (commitment to the divine command).

An important point: faith as a factual claim is not certain in every sense, but one can argue that it is reasonable/justified within the framework of the philosophical arguments in the book.

B. The meaning of revelation — “the metaphysical glass ceiling”

The key idea: there is a limit to what philosophy and pure rationality can provide—revelation comes (when it occurs) to break that “ceiling” and bring knowledge and command that are difficult to attain by purely philosophical means. Therefore, the move from deism (a philosophical God who does not intervene) to religious theism requires examining the phenomenon of revelation itself.

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Part B — The factual discussion: the reliability of the tradition about revelation
C. The meaning of deism in the theistic view

Deism: accepting the existence of God in an abstract way (or that God created the world and then does not intervene). The problem is that deism gives an abstract God but does not provide a mechanism that justifies obeying religious commands or the importance of tradition. The move to religious theism requires a factual explanation (how/why accept revelation?).

D. On tradition — the argument from testimony

The gist of the argument: continuous reception (historical transmission of testimony about events of revelation—for example, the revelation at Mount Sinai) counts as historical evidence, similar to accepting historical testimony about other events (for example, testimony about Napoleon). Therefore, in the absence of a strong reason to deny it, tradition should be accepted as factual proof of the event of revelation.

The author’s point: when we examine historical truths, we do not demand absolute experimental proof—serious testimony passed down from generation to generation can justify a factual conclusion.

E. The classic criticism — Hume’s criticism of the argument from testimony

The critics’ reasoning: a miracle (revelation) has a low probability; therefore, human testimony about a miracle is less reliable than the natural probability of assuming that no miracle occurred. Conclusion: a tradition of miracles is not reasonable.

Abraham’s response — two central comments against this argument:

Excessive intellectual conservatism — the assumption that one must always prefer a natural explanation (and reject a miracle) may itself be irrational when there is evidence and philosophical support that make accepting the divine possibility warranted.

Begging the question — criticism of the argument from testimony sometimes already assumes in advance that there is no God/no miracles; but in the previous conversations, good arguments for the existence of God were examined, so it is unfair to claim the tradition is undermined without addressing those arguments.

F. Biblical evidence for gaps in the tradition — does this weaken the argument?

Abraham does not support a conception of a uniform and perfect tradition in every detail; he notes gaps/changes in the tradition and texts (and discusses biblical evidence showing variation). At the same time, he argues that not every gap undermines the overall authenticity of the revelation, and that each claim should be examined historically and critically, rather than projecting from a local defect onto the whole tradition.

G. Combining considerations — the overall picture

The practical conclusion: there is no single argument that settles the discussion; one must accumulate a range of considerations (philosophical, historical, traditional testimonies, probability, consistency of transmission) and build a reasonable picture that, in the author’s estimation, justifies accepting the tradition as a reasonable explanation for revelation.

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Part C — The normative discussion: the validity of revelation (why obey? why commandments?)
G. On the obligation to obey the divine command — the central question

The question: even if there was a revelation, why do we have a normative obligation to obey the commands that were revealed? Does accepting the fact not automatically create a moral obligation? Abraham formulates the problem as “the question of normative grounding” and argues that it must be examined philosophically (while making sure we do not fall into the naturalistic fallacy).

H. The axiomatic basis for serving God

Abraham develops a discussion in which he clarifies that there is a difference between the moral rationale and religious obligation: not every factual argument can by itself create a command; one must also understand the nature of the moral and halakhic idea, and how God provides an explanation for the factor that gives the idea its binding force (that is: God provides a metaphysical framework that justifies the validity of the norms).

I. “For its own sake” — intention and motivation

Another important point: external action is not enough; one also needs the right intention—doing the commandment “for its own sake,” otherwise it lacks full religious value. Abraham refers to tradition and Maimonides to emphasize the need for proper motivation (and to discuss whether intentions can be corrected and what the meaning of “truth” is in religious action).

J. The existential dimension — what is the benefit of observing commandments?

The question of “existence”: what does a person gain by observing commandments? Is there an existential benefit to it? Abraham concludes that the motivation is not merely utilitarian—observing commandments is a matter of inner truth, spiritual repair, and participation in a metaphysical framework (the idea of increasing good in the world through choice). At the same time, he also discusses the practical/personal consequences that observance offers.