Originally our ancestors worshipped idols: This is in accord with what we are taught: "Begin with disgrace and end with exaltation." The Talmud asks: What is disgrace? According to Rav, "Originally our ancestors worshiped idols." According to Samuel, "We were slaves to Pharaoh in Egypt." We include both interpretations in the Haggadah" (BT Pesachim 116a). Rav's interpretation appears here following the explication of "Because of this (zeh) which the Lord did for me…" (Ex. 13:8) because the sages taught that one who has abandoned his faith for idolatry is not allowed to partake of the Passover meal, as it is written, "A stranger may not partake of it." Therefore we begin by speaking of the disgrace, that our ancestors worshipped idols, and only when they came closer to their true faith and were circumcised before they left Egypt, only then were they fit to offer the sacrifice and to come close to the service of God. We say it here in order that the children will hear this and will learn a lesson and not allow their hearts to go astray after vanity, and thus be exiled from the table of their Father in Heaven. It is fitting to mention how their ascent into slavery came about and how they learned the ways of other nations as a result of being dispersed among them as well as their Exodus from Egypt, along with the miracles and wonders God performed there. It was because of God's great love that He chose our ancestors and their children after them. Abraham had two sons but God only chose Isaac, the precious child and the pure offering. So too, Isaac had two sons but God chose Jacob. God decreed subjugation to the nations of the world in this world so that they would merit reward in the world to come.