Another difference between these two “pesachs” is about the place in which you should celebrate Passover. The first one was celebrated in Egypt and I’m not sure that the Israelites had the time to really enjoy it.
The Passover since then that is celebrated all around the world carries the intention to do it in the Promised Land. The reason that the Israelites commemorated Passover in Egypt was to signify to God which houses not to visit the death of the firstborn upon. Today we celebrate the miracles of God in Egypt – the Ten Plagues, the Exodus and the crossing of the Red Sea.
The first Passover related mainly to the sacrifice that was to be prepared from the tenth day of the first month until the fourteenth day. After eating the meat and indicating to God on the doorpost with the blood of the lamb, the Festival was over. Passover today is celebrated for seven days and we skip putting blood on doorposts; rather, we eat matzah (unleavened bread) for seven days and we recite the Exodus every year, celebrating our freedom. From the second time that Passover was celebrated, the concept of independence from slavery has been central to us as a people. I would like to share some verses that can shed the light of this Festival as written in Exodus 12:48-49-
” וְכִי-יָגוּר אִתְּךָ גֵּר, וְעָשָׂה פֶסַח לַיהוָה הִמּוֹל לוֹ כָל-זָכָר וְאָז יִקְרַב לַעֲשֹׂתוֹ וְהָיָה כְּאֶזְרַח הָאָרֶץ; וְכָל-עָרֵל, לֹא-יֹאכַל בּוֹ. תּוֹרָה אַחַת, יִהְיֶה לָאֶזְרָח, וְלַגֵּר, הַגָּר בְּתוֹכְכֶם”
“But if a stranger sojourns with you, and celebrates the Passover to the Lord, let all his males be circumcised, and then let him come near to celebrate it; and he shall be like a native of the land. But no uncircumcised person may eat of it. The same law shall apply to the native as to the stranger who sojourns among you.Passover should be for everyone! We all should be redeemed by God and the idea of freedom.