Musar su Salmi 62:12

The difficulty in the statement of our sages concerning all this is why they said "all of them (those gifts) can be attained only through suffering." The statement should have read as follows: "G–d has given Israel three gifts which are attained by way of suffering." The truth is that in this case our sages "said one thing but wanted us to hear two things," as per Psalms 62,12. Each one of those gifts is really composed of multiple gifts.

I have alluded to the fact that the name אנכי may be understood as י אנ"ך the letter י describing the Decalogue, and the other three letters being the opening letters of the three words אורייתא, נביאים, כתובים. (short for the Bible) Since the letter י is considered the "highest" of the letters, it comprises all the other letters within it; it also includes within its essence the other letters forming the Ineffable Name, and especially the letter א. When the sages stated that the Ten Commandments were said בדבור אחד, as a single unbroken utterance, this meant that a single thought was subdivided into ten thoughts. The higher one ascends spiritually, the clearer one will perceive that all the variety of facets of the subdivided original parts which are a result of the original One subdividing, will once more coalesce and form the original One. It is perhaps easiest to understand the Ten Commandments as a single commandment to which G–d added nine amendments. This perhaps is the deeper meaning of Psalms 62,12: אחת דבר אלוקים שתים זו שמעתי, "One thing G–d has spoken, two things have I heard." First G–d made a single statement including all that He had to say; subsequently He fed Israel this message in smaller selfcontained doses. We ourselves heard only two statements directly from G–d, אנכי, and לא יהיה לך.

Rabbi Saadyah Gaon has written about this in his book ספר האמונות. The written Torah expresses itself usually only in general terms. A single meaning cannot comprise all the many thoughts contained in that phrase. Torah has both hidden and obvious meanings, as is written אחת דבר אלוקים, שתים זו שמעתי. "G–d has said one thing, whereas I heard two things" (Psalms 62,12).