וְעָנִ֨יתָ וְאָמַרְתָּ֜ לִפְנֵ֣י ׀ יְהוָ֣ה אֱלֹהֶ֗יךָ אֲרַמִּי֙ אֹבֵ֣ד אָבִ֔י וַיֵּ֣רֶד מִצְרַ֔יְמָה וַיָּ֥גָר שָׁ֖ם בִּמְתֵ֣י מְעָ֑ט וַֽיְהִי־שָׁ֕ם לְג֥וֹי גָּד֖וֹל עָצ֥וּם וָרָֽב׃
И скажи и скажи пред Господом Богом твоим: 'Моим отцом был странствующий Арамеянин, и он пошел в Египет и остановился там, немногочисленный; и он стал там народом, великим, могучим и густонаселенным.
Rashi
וענית is an expression for raising one’s voice (speaking loudly) (Sotah 32b).
Ibn Ezra
you shall reply Apparently the kohanim say something to the effect of, “What is this that you have brought?” — consequently, you shall reply. But the verb can also denote initiating a conversation, as in the first appearance of “Job declared” [Job 3: 2] [cf. comment on Exodus 15: 21].
Rashbam
ארמי אובד אבי, as if the Torah had written” my father Avraham was an Aramite, lost, and exiled from his birthplace Aram.” G’d had told him in Genesis 12,1 “go forth for yourself from your homeland, etc.” Later on, Avraham himself relates to Avimelech the king of the Philistines, (Genesis 20,13) that G’d had made him wander, away from his father’s house, etc. The meaning of the word אובד here is similar to תועה, the root Avraham used to describe wandering without specific objective, almost like walking because one is lost. The word occurs clearly in that sense in Psalms 119,176 תעיתי כשה אובד בקש עבדך, “I have strayed like a lost sheep; search for Your servant, etc.!” We also find the word in this connotation in Jeremiah 50,6 עמי רועיהם התעום, “My people were lost sheep; their shepherd led them astray.” In other words, the recital by the farmer goes back to the Jewish people’s origin, the farmer saying: ‘our forefathers came to this land from an alien country and now G’d has given it to us.