Why does the world hold together? Jeremiah gives the unlikely answer: "If not for My covenant day and night, I would not have established the fixed order of heaven and earth" (Jeremiah 33:25). The orbits, the seasons, the rhythm of the cosmos — all of it, the rabbis said, is upheld by the covenant. Remove the Torah from the world and the stars stop on schedule.
This is the theological weight behind the Sabbath. God built the Sabbath into creation before He built anything else worth resting from. The seventh day wasn't added to the week — it was woven into the structure of time itself. The rabbis of Aggadat Bereshit trace this through the prophecies: the covenant of day and night, the covenant with Abraham, the covenant with Israel at Sinai — one continuous thread of divine commitment holding the natural order in place.
In Egypt, Israel had forgotten everything. They were bowing to idols. They had lost the Sabbath. The covenant should have been void — and by ordinary logic it was. But God redeemed them anyway. Not because of their deeds in that moment, which were dismal, but because of the covenant itself. This is the doctrine the rabbis called zekhut avot — the merit of the ancestors. When the present generation has nothing to offer, the covenant made with the patriarchs still stands. The Sabbath still comes. The fixed order still holds. The stars still keep their schedule, not because anyone has earned it, but because God gave His word.
Chapter 16: Torah [1] Now Abraham was ninety-nine years old (Genesis 17:1). It is said in Psalms (45:3), "Gird your sword upon your thigh, O mighty one, [in your splendor and your majesty]." The sons of Korah said this psalm about Abraham. "How fair you are among the sons of men," [meaning] more beautiful than the sons of Adam - [more beautiful] than Adam's descendants, Sheit, Enosh, and Kayin; [more beautiful] than the sons of Noach, [as it is written,] "And the Lord came down to see the city and the tower, which the sons of man had built" (Genesis 11:5). "Grace has been poured upon your lips" (Psalms 45:3). When you swore to the King of Sodom, as it is written, "I have lifted my hand to the Lord, God Most High" (Genesis 14:22), [the same grace that enabled you to become the anointed one] has been poured upon your lips. And for the reward that was given to you, therefore God has blessed you forever (Psalms 45:3), and all the praises that are sung of you, you have descended to the fiery furnace and been subjected to many trials, yet you stood firm and pursued after fifteen kings (Genesis 14:14-15) and were extolled throughout the world. Whatever you did, you did [well]. From here on out, I seek to make known my might, "Gird your sword upon your thigh, O mighty one." (Psalm 45:4) At that time, [God] glorified you and beautified you in the world. When was this? "Now Abraham was ninety-nine years old", and so on... "And I will establish My covenant with you", and so on... (Genesis 17:1-2). [2] Another interpretation: "And I will establish My covenant" (Genesis 17:2). This refers to the secret of God for those who fear Him, and His covenant to make it known to them (Psalms 25:14). What is the secret of the Holy One, blessed be He? It is a word that the Holy One, blessed be He, did not reveal, a mystery of a word that passed from person to person for twenty generations, until Abraham came and received it, as it is stated, "The secret of the Lord is with those who fear Him, and He will make known to them His covenant" (Psalms 25:14). This refers to Abraham, as it is said of him, "Now I know that you fear God" (Genesis 22:12). God said to him, "If you perform circumcision, you will take hold of the secret, the secret of the Lord for those who fear Him," which is numerically equivalent to seventy (סו"ד בגימטריא שבעים). "Seventy souls" (Deuteronomy 10:22) "And it establishes from them seventy Sanhedrins, as it is said, 'Gather for Me seventy men...' (Numbers 11:16). I establish from them, and I establish from your descendants Moses, who spoke the Torah in seventy languages, as it is stated, "Beyond the Jordan in the land of Moab" (Deuteronomy 1:5). On account of what? On account of circumcision, as it is stated, "The Lord our God made a covenant with us [at Horeb]" (Deuteronomy 5:2). This covenant is circumcision. [edit ref. Pirkei DeRabbi Eliezer 10:10] Therefore, it is said, "The secret of the Lord is with those who fear Him." God said to Abraham, "It is enough for the servant to be like his master." And His covenant, to make it known to them (Psalms 25:14). This can be compared to a king who had a beloved servant who was richer than all others. He said, "What shall I do for this beloved one? What shall I give him? He has gold and silver, he has slaves and maidservants." But then the king said, "Behold, I will take off my belt and give it to him as a sign of my affection." Similarly, God said to Abraham, "What shall I give you? You have gold and silver, as it is said, 'And Abram was very rich' (Genesis 13:2). But what can I give you? I will give you My belt, and establish My covenant between Me and you" (Genesis 17:4). "And Abraham fell on his face"..."Behold, My covenant is with you" ans so on. (Genesis 17:3-4), the secret of the Lord for those who fear Him. [3] Another interpretation: And it came to pass that Abram said to Him, "The Holy One, Blessed be He," "From the time that Abram was standing until now, the world was dark in the aspect of "Tohu" and "Bohu." But since You have revealed Yourself and made Yourself known in the world, it has become illuminated, as it is said, 'Who aroused one from the East, etc.' (Isaiah 41:2). So come and shine before me, so that I may see Your light," as it is said, "And He said to him, 'I am the Lord, etc.' And Abram fell, etc., 'Behold, I have made a covenant with you' (Genesis 15:18)." Abram said to Him, "Who will circumcise me?" He said to him, "You will circumcise yourself." Abram took a sword and held his foreskin, but when he came to cut it, he became afraid because he was old and it was tough. What did the Holy One, Blessed be He, do? He extended His hand and took hold of Abram's hand, and Abram cut. From where do we know this? As Ezra praises Him, "You are the Lord, the God who chose Abram, etc., and found his heart faithful before You, and made a covenant with him" (Nehemiah 9:7-8). And it doesn't say "He made a covenant with him," but "He made a covenant with him and held his hand." This teaches that the Holy One, Blessed be He, was holding Abram's hand while Abram was cutting, and so it says, "And He fulfilled Your words, for You are righteous" (Nehemiah 9:8).
