Rabbi Abbahu ben Zutarti said that Rabbi Yehuda bar Zevida said: The Sages sought to establish the blessings of Balaam that appear in the Torah portion of Balak, as part of the twice-daily recitation of Shema. And why did they not establish it there? Because extending Shema would place an encumbrance on the congregation, from which the Sages sought to refrain. The Gemara seeks: Why did the Sages seek to add the blessings of Balaam in the first place? If you say that they did so because the exodus from Egypt is mentioned, as it is written therein: “God, who brought them forth out of Egypt, is like the horns of the wild ram” (Numbers 23:22), certainly mention of the Exodus is not unique to this Torah portion. Many other portions mention the exodus as well. Let us say the portion of usury (Leviticus 25:35–38) or the portion of weights (Leviticus 19:35–37), as the exodus from Egypt is written therein as well. In addition, they are brief and would not constitute an encumbrance on the congregation. Rather, Rabbi Yosei bar Avin said: The reason the Sages sought to establish the portion of Balak as part of the recitation of Shema is because it is written therein: “He couched, He lay down like a lion and a lioness; who shall rouse Him? Those who bless You are blessed and those who curse You are cursed” (Numbers 24:9). This is reminiscent of what is said in Shema: When you lie down, and when you rise. On this, the Gemara asks: And if it is important to include this as part of Shema because of this single verse, then let us say this verse and nothing more. The Gemara rejects this: It is impossible to do this, as they learned through tradition that any portion that Moses, our teacher, divided, we too divide and read separately. However, a portion that Moses, our teacher, did not divide, we do not divide and read separately. And, as stated above, the Sages did not wish to institute the recitation of the entire portion of Balak to avoid placing an encumbrance on the congregation. The Gemara continues: Why was the portion of ritual fringes established as part of the recitation of Shema when its content is unrelated to that of the preceding portions? Rabbi Yehuda bar Ḥaviva said: The portion of ritual fringes was added because it includes five elements including the primary reason for its inclusion, the exodus from Egypt (Melo HaRo’im): The mitzva of ritual fringes, mention of the exodus from Egypt, the acceptance of the yoke of mitzvot, admonition against the opinions of the heretics, admonition against thoughts of the transgressions of licentiousness, and admonition against thoughts of idolatry. The Gemara clarifies: Granted, these three are mentioned explicitly: The yoke of mitzvot is mentioned in the portion of ritual fringes, as it is written: “And you shall look upon them and remember all the mitzvot of the Lord and you shall do them” (Numbers 15:39). Ritual fringes are mentioned explicitly, as it is written: “And they will make for themselves ritual fringes” (Numbers 15:38). The exodus from Egypt is also mentioned explicitly, as it is written: “I am the Lord, your God, who took you out from the Land of Egypt” (Numbers 15:41). But where do we derive the other elements mentioned above: Admonition against the opinions of the heretics, admonition against thoughts of transgressions of licentiousness, and admonition against thoughts of idolatry? In response, the Gemara cites a baraita where these elements were derived from allusions in the verse, “You shall stray neither after your hearts nor after your eyes, after which you would lust” (Numbers 15:39). As it was taught: “After your hearts” refers to following opinions of heresy that may arise in one’s heart. The Gemara offers a proof, as it is stated: “The fool said in his heart: ‘There is no God’; they have been corrupt, they have acted abominably; there is none who does good” (Psalms 14:1). The phrase: “After your eyes,” in this verse refers to following thoughts of transgressions of licentiousness, that a person might see and desire, as it is stated: “And Samson said to his father, ‘That one take for me, for she is upright in my eyes’” (Judges 14:3). The passage: “You shall stray after” refers to promiscuity, which in the parlance of the prophets is a metaphor for idol worship, as it is stated: “The children of Israel again went astray after the Be’alim” (Judges 8:33).