The Gemara related a story of how Rabbi Eliezer spoke in Halacha all day long on Yom Tov. He was upset with people who left early “who forsook the everlasting life for pleasures of this world”. But blessed the people who left at the end “Go and eat delectable foods, and drink sweet wines.”
Challenge: Why would Rabbi Eliezer refer to feasting on Yom Tov as forsaking everlasting life for pleasures of this world? Feasting on Yom Tov is a mitzvah.
Resolution: Rabbi Eliezer is following his opinion that simchas Yom Tov is a reshus, as recorded in the Beraisa: Rabbi Eliezer: On Yom Tov, one may eat and drink all day or sit and learn all day [it doesn’t mean ‘all day’ in a literal sense, Yom Tov is not a fast day. Tosfos: Indeed, the people who left at the end received his blessing]. Rabbi Yehoshua: Split the day; half ‘for Hashem’ and half ‘for yourselves’ [one must eat more than usual].
Rabbi Yochanan: They both derived this from the same verse: One possuk says “An Atzeres for Hashem” and one possuk says “An Atzeres for yourselves”. Rabbi Eliezer understands that either one is legitimate. Rabbi Yehoshua understands that the day must be split.
Question: What is meant by the statement in Nechemya [075]: “Send portions to those who are lacking.”?
Rav Chisda: It refers to those who have not prepared Eiruv Tavshilin.
Some Say: To those who couldn’t make Eiruv Tavshilin [due to poverty], but if one was able to and he neglected his duty, he is negligent, and we’re not concerned for him.
Question: What is meant by the statement in Nechemya [075]: “the joy in Hashem will be your strength”?
Rabbi Yochanan from Rabbi Elazar b’Rebbi Shimon: Hakadosh Baruch Hu says to the Jewish nation “My children, borrow on my credit for the necessities of Shabbos and Yom Tov, and trust in me; I will pay for it”. [Tosfos: The Gemara elsewhere says that one should make his Shabbos meal like a weekday meal, rather than taking from others, that is only if he doesn’t know where he will be able to pay back from. The Gra has a different version - that the other Gemara is referring to a case where he doesn’t have anyone to borrow from. It seems that if he does have someone to borrow from, he may borrow even if he doesn’t know how he will pay back]. 
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