Another matter, “this is the book of the descendants of Adam,” it is written: “Your eyes saw my unformed parts, and in Your book they were all written. Of the days that were created, each one is His” (Psalms 139:16). Rabbi Yehoshua bar Neḥemya and Rabbi Yehuda bar Simon said in the name of Rabbi Elazar: When the Holy One blessed be He created Adam the first man, He created him [so large as to be] filling the whole world.
From east to west, from where is it derived? It is as it is stated: “From back [aḥor] and front [kedem],4Aḥor and kedem can also mean “west” and “east.” You shaped me” (Psalms 139:5). From north to south, from where is it derived?
It is as it is stated: “[From the day God made Adam on the earth,] and from one end of the heavens to the other end” (Deuteronomy 4:32). From where is it derived that he even filled the empty space of the world? It is as it is stated: “You placed Your palm upon me” (Psalms 139:5). Rabbi Tanḥuma in the name of Rabbi Benaya, and Rabbi Benaya and Rabbi Berekhya in the name of Rabbi Elazar, said: He created him unformed and he was placed from the end of the world to its end.
That is what is written: “Your eyes saw my unformed parts” (Psalms 139:16). Rabbi Yehuda bar Simon said: While Adam the first man was placed unformed before Him who spoke and the world came into being, He showed him each and every generation and its scholars, each and every generation and its wise men, each and every generation and its interpreters of the Torah, each and every generation and its leaders, as it is stated: “Your eyes saw my unformed parts, [and in Your book they were all written]” – the unformed ones whom Your eyes saw, they were already written in the book of Adam the first man. That is, “this is the book of the descendants of Adam.”