Midrash su Deuteronomio 4:14

(Deut. 26:16:) “This day the Lord your God is commanding you to perform.” This text is related (to Ps. 95:6), “Come, let us bow down and bend, let us kneel before the Lord our Maker!” But is not bending included in bowing down; and bowing down in bowing? So what does the instruction mean by “let us bow down and bend and kneel down?” Moses simply foresaw that the Temple was going to be destroyed and that the firstfruits were going to cease. He arose and arranged for Israel to pray three times on every day, because prayer is more pleasing to the Holy One, blessed be He, than all of the good works and all of the sacrifices. It is so written (Ps. 141:2), “Take my prayer as an offering of incense, my upraised hands as an evening sacrifice.” And when it was decreed for Moses not to enter the land in spite of all of his good works, he began to pray, and he said (in Deut. 3:25), “Please let me cross over and see [the good land].” The Holy One, blessed be He, said to him (in vss. 26-27), “Enough from you; do not ever speak unto Me on this matter again. Go up to the top of Pisgah.” It is therefore stated (in 26:16), “[This day] the Lord your God is commanding you to perform….”¹I.e., to obey the command to go up to the top of Pisgah. Although the midrash understands the performance in reference to this one command, the simple understanding of the biblical text is that it is speaking about performing statutes and ordinances. What is written above the matter (in vs. 15)? “Look down from Your holy dwelling, [from the heavens and bless Your people].” R. Abbahu said in the name of R. Jose bar Hanina, “How spoiled and how great a pretext are given to those who perform the commandments [for doing so]: If someone has business with the empire, there are times when he gives some money, until they have him reach the king. When he does reach the king, he has doubts whether he will fulfill his request or not. The Holy One, blessed be He, however, is not like that. Rather when one goes down into his field [and] sees a [grape] cluster that has ripened early, a fig that has ripened early, a pomegranate that has ripened early, he puts it in a basket, goes to Jerusalem and enters and stands in the [Temple] courtyard; he [then] asks mercy for himself, for Israel, and for the land of Israel. Thus it is stated (in Deut. 26:15), ‘Look down from your holy dwelling, [from the heavens and bless your people].’ And not only that, but he would say, “I am not moving from here until You perform my requirements this day,’ as it is written next to it (in vs. 16), ‘This day the Lord your God is commanding you to perform.’” Resh Laqish said, “A heavenly voice (bat qol) comes forth and says, ‘You shall do it again on this day in the coming year.’ [He is] like one who gives fresh fruit to his friend, and [the friend] says to him, ‘Would that you would do this again, and give me some next year.’” R. Hiya bar Abba said, “How spoiled are those who perform the commandments in front of the Holy One, blessed be He. As the Holy One blessed be He, enacts a decree and the righteous ones annul it. As it is stated (Eccl. 8:4), ‘Inasmuch as a king’s command is authoritative, and who can say to him, “What are you doing.”’ Who is it [that can say it]? (Eccl. 8:5:) ‘One who obeys commandments will not know a bad thing,’ he can object to the Holy One, blessed be He.” And so with David, he said (II Sam. 23:3), “The God of Israel said, the Rock of Israel spoke about me, ‘He that rules over men must be righteous, ruling in the fear of God.”¹See Moed Katan 16b, where this verse is explained as saying that the righteous one rules over God. [(Deut. 26:16:) “This day the Lord your God is commanding you to perform…].” What is the meaning of this day? Had the Holy One, blessed be He, not given a command to Israel until now? And was not this the fortieth year (since they left Egypt), as stated (in Deut. 1:3), “And it came to pass in the fortieth year….” Then what is the meaning of the words, “this day?” Simply that Moses spoke to Israel as follows, “On each and every day, let the Torah be dear to you, as if you had received it this day from Mount Sinai.” Moreover, it is written in another place (i.e., in Deut. 4:9), “make them known to your children….” Then it is written (in vs. 10), “The day that you stood before the Lord [your God at Horeb].” (Deut. 26:16, cont.:) “These statutes,” these are the midrashic commentaries; “and these ordinances,” these are the court decisions. Another interpretation (of Deut. 26:16), “these statutes and these ordinances: [They are meant] to include light and heavy [commandments], inferences from analogy, and fine points of scribal exegesis. (Deut. 26:16, cont.:) “So you are to be diligent in doing them.” R. Johanan said, “When anyone performs a single commandment truthfully, Scripture ascribes it to him as if it had been given [to him] from Mount Sinai, as stated (Deut. 26:16), ‘So you are to be diligent in doing.’” Then what is the meaning of (in Lev. 25:18), “and you shall do (which can also be read as, make) them?” Rather, anyone that observes the Torah and does it truthfully, it as if he arranged it and gave it from Mount Sinai. And R. Johanan also said, “Anyone who does [what is written in] the Torah truthfully, Scripture ascribes it to him as if he had made himself; as stated (in Deut. 4:14), ‘At that time the Lord commanded me to impart [to you laws and rules to make you do].’ It does not say, ‘to do them,’ but “to make you, do them.’ From here [we learn] that Scripture ascribes it to him as if he made and created himself.” (Deut. 26:16, cont.:) “With all your heart.” Behold Scripture warns Israel and says to them, “When you pray to the Holy One, blessed be He, you shall not have two hearts, one in the presence of the Holy One, blessed be He, and one for something else.”²See Ben Sira 1:28 (25).

Alternatively, "These days were formed, but not one from them" [Psalms 139:16] is refering to Yom Kippur for (the nation of) Israel. {continuing}

“…for your love is better than wine” (Song of Songs 1:2). We learned there (Mishna Avoda Zara 2:5): Rabbi Yishmael asked Rabbi Yehoshua as they were walking on the way: ‘Why did [the Sages] prohibit the cheese of the gentiles?’ [Rabbi Yehoshua] said to him: ‘Because they curdle it with the stomach contents of an animal carcass.’ He said to [Rabbi Yehoshua]: ‘But are the stomach contents of a burnt offering not more stringent than the stomach contents of an animal carcass, yet they said that a priest who is broad minded¹⁰⁹He is not particular about what he eats. swallows it raw.’ What is, swallows it raw? He gulps it down. Rabbi Shimon ben Lakish said: They rendered it like a tainted cup; he may not benefit, but he is not liable for misuse of consecrated items.¹¹⁰Thus, if one eats the stomach contents of a consecrated animal, one is not liable for misuse of a consecrated item. This proves that it is not considered a food item, therefore its consumption is not a normal act of eating. Similarly, the stomach contents of an unslaughtered animal carcass should not be considered a food item, and should not render the cheese non-kosher. [Rabbi Yishmael] said to him:¹¹¹In the mishna, this is stated as a response to a second explanation given by Rabbi Yehoshua for the prohibition of eating the cheese of gentiles: They curdle it in the stomach contents of animals that have been slaughtered as an idolatrous sacrifice. ‘If so, why did they not prohibit benefit from it?’ [Rabbi Yehoshua] diverted his attention to another matter. He said to him: ‘Yishmael, my brother, how do you read it? For Your love [dodekha] is better than wine, or your love [dodayikh] [is better] than wine?’¹¹²Do you think that the term “your love” is stated in the masculine form [dodekha], indicating that it is being stated by the woman, representing Israel, to the man, representing God, or is it stated in the feminine form [dodayikh], indicating that it is stated by the man, representing God, to the woman, representing Israel. Rabbi Yishmael answered that it is vocalized dodayikh, in the feminine. He said to him: ‘The matter is not so, as its counterpart teaches in its regard: “Your oils [shemanekha] have a goodly fragrance”’ (Song of Songs 1:3).¹¹³Just as this verse is in the masculine, so, too, the previous verse, which is the verse under discussion, is also in the masculine.
Why did he not reveal it to him?¹¹⁴Why did he divert his attention rather than answering his question? Rabbi Yonatan said: It is because they had prohibited it only recently,¹¹⁵When the Sages issue a decree, for the first year they do not reveal the reason behind it, so that people will accept the decree without questioning its rationale. and Rabbi Yishmael was young. Rabbi Shimon ben Ḥalafta and Rabbi Ḥagai in the name of Rabbi Shmuel bar Naḥman [said]: It is written: “Lambs [kevasim] will be for your garments” (Proverbs 27:26). Kevashim, concealed items, is written.¹¹⁶The word, as written, can be read either kevasim or kevashim. When your students are young, conceal matters of Torah from them. When they grow and become Torah scholars, reveal the secrets of Torah to them. Rabbi Shimon ben Yoḥai taught: “These are the ordinances that you shall place [tasim] before them” (Exodus 21:1), just as this treasure [sima] is not revealed to every person, the same is true of matters of Torah.
Rav Huna raised a question and Rabbi Ḥama bar Ukva posed a difficulty:¹¹⁷Some suggest that the text should read: Rav Huna, citing Rabbi Hama bar Ukva, posed a difficulty (Etz Yosef). If he sought to divert him, he should have diverted him from the five verses in the Torah that require resolution.¹¹⁸In each of these cases there are two phrases, and it is unclear whether a particular word which appears at the border of the two belongs to the first or second phrase. These are they: “se’et” (Genesis 4:7); “cursed” (Genesis 49:7);¹¹⁹Does “cursed” belong to the previous verse: “And with their will they hamstrung an ox that is cursed” or does it belong to the beginning of this verse: “Cursed is their wrath, as it is fierce”? “tomorrow” (Exodus 17:9);¹²⁰Is it “Go out and battle Amalek tomorrow” or is it “Tomorrow I will stand at the top of the hill”? “crafted like almonds” (Exodus 25:34);¹²¹Is it “four cups crafted like almonds,” or is it “like almonds are its knobs and flowers”? “arise” (Deuteronomy 31:16).¹²²Is it “you will lie with your ancestors and arise,” or is it “this people will arise and it will stray”? Is it, “if you do well you will receive forgiveness [se’et],” or is it “you will bear your sin [se’et] if you do not do well”? Rabbi Tanḥuma said: I have another: “The sons of Jacob came from the field when they heard” or “when they heard [the men were saddened] and they came from the field” (Genesis 34:7). Rabbi Yitzḥak said: It is written: “And the Lord commanded me” (Deuteronomy 4:14); there are matters that He said to me myself, and there are matters that He told me to say to my children.¹²³Some matters of Torah are meant to publicized to all, and others are meant to be communicated only to those who are worthy. Rabbi Eila said: There are matters that one seals [meshikin]¹²⁴This is derived from yishakeni. Rabbi Yehoshua raised this verse to Rabbi Yishmael in order to allude to the fact that not everything is meant to be publicized (Matnot Kehuna). in one’s mouth.
How so? One verse says: “I store Your saying in my heart, so as not to sin against You” (Psalms 119:11), and one verse says: “With My lips I have recounted all the ordinances of Your mouth” (Psalms 119:13). In what sense can both these verses coexist? Rather, as long as Ira HaYa’iri, David’s mentor, was alive, “I store Your saying in my heart”; when he departed, “with my lips I have recounted.”¹²⁵David did not publicize halakhic matters during the lifetime of his teacher because a disciple is prohibited from issuing halakhic rulings in the presence of his teacher (Eruvin 63a).