I might think, even with fowl and meal-offerings; it is, therefore, written "in your festival" — in what the festival offerings come from (i.e., meat) — to exclude fowl and meal-offerings, from which festival offerings do not come.
"you, your son, your daughter, your man-servant, and your maid-servant": in the order of affection.
(Devarim 16:15) "Seven days shall you celebrate before the L-rd your G-d": I might think that he sacrifices the festive offering (chagigah) all seven days; it is, therefore, written (Vayikra 43:41) "And you shall celebrate it" (the first day), and not all seven days.