While research for more information on the Ta'anit B'Khorim, I came across something I had not given much thought about... that is ... which side of the door was the blood, on the outside for all to see, or on the inside for those inside to see?
seliyah.org
This tenth plague differs from the rest not only in its severity but also in the events preceding it. The Israelites no longer sit passively witnessing the mighty hand of God. This time, they must perform the commandment of the Paschal lamb before God's smiting of all the firstborn of Egypt:
"The Lord said to Moses and Aaron in the land of Egypt: ... Speak to the whole community of Israel and say that on the tenth of this month each of them shall take a lamb to a family, a lamb to a household...Your lamb shall be without blemish, a yearling male; you may take it from the sheep or from the goats. You shall keep watch over it until the fourteenth day of this month; and all the assembled congregation of the Israelites shall slaughter it towards evening. They shall take some of the blood and put it on the two doorposts and the lintel of the houses in which they are to eat it. They shall eat the flesh that same night; they shall eat it roasted over the fire, with unleavened bread and with bitter herbs. Do not eat any of it raw, or cooked in any way with water, but roasted over the fire - its head with its legs and with its entrails. You shall not leave any of it over until morning; if any of it is left until morning, you shall burn it.
"This is how you shall eat it: your loins girded, your sandals on your feet, and your staff in your hand; and you shall eat it hurriedly; it is a passover offering to the Lord. For that night, I will go through the land of Egypt and strike down every firstborn in the land of Egypt, both man and beast; and I will mete out punishments to all the gods of Egypt, I the Lord. And the blood on the houses where you are staying shall be a sign for you: when I see the blood I will pass over you, so that no plague will destroy you when I strike the land of Egypt" (Exodus 12:1, 3-13).
"Moses then summoned all the elders of Israel and said to them, 'Draw out and take lambs for your families, and slaughter the passover offering. Take a bunch of hyssop, dip it in the blood that is in the basin, and apply some of the blood that is in the basin to the lintel and to the two doorposts. None of you shall go outside the door of his house until morning. For when the Lord goes through to smite the Egyptians, He will see the blood on the lintel and the two doorposts, and the Lord will pass over the door and not let the Destroyer enter and smite your home'" (Exodus 12:21-23).
God commands the Israelites to put blood from the sacrificed lamb on the two doorposts and the lintel of the houses in which the Paschal lamb is eaten. The blood is to serve as a sign protecting the Israelites from the plague of the firstborn. Upon seeing the blood on the homes of the Israelites, God will pass over them and not inflict any harm on those in the home. According to a simple reading of the text it seems as if the blood on the houses is to serve as a sign for God designating the Jewish residences in Egypt. However, such a possibility is philosophically untenable; why would God, the omniscient, need an external sign in order to know which homes are Jewish? Surely everything is revealed before Him! Our sages in the Mekhilta of Rabbi Yishmael (Halakhic midrash of our sages on Exodus) rule out the possibility that the blood is a sign for God on textual grounds:
"And the blood on the houses where you are staying shall be a sign for YOU" (12:13)- "A sign for you but not a sign for Me."
If the blood is not meant to serve as a sign for God, designating Jewish homes, then what is its function? The answer to this question depends on a disagreement amongst our sages regarding the exact location where the blood was applied:
"Rabbi Natan says [that the blood was applied] on the inside [of the houses]...as is stated 'And the blood on the houses where you are staying shall be a sign for you' (12:13) - A sign for you but not a sign for others. Rabbi Isaac says [that the blood was applied] on the outside [of the houses] so that the Egyptians would see [the blood] and their intestines would fail [they would be horrified]" (Mekhilta).
The sages agree that the blood is not a sign for God. However, they disagree whether the blood was applied on the internal part of the door, facing the people inside the house, or on the external part of the door, facing the Egyptians walking outside. The location of the blood affects our understanding of its function and the ultimate purpose of the commandment of the Paschal lamb.
We will begin our analysis of the Paschal lamb with Maimonide's (Rabbi Moshe ben Maimon, Egypt, 1138-1204) explanation:
"Scripture tells us that the Egyptians worshipped Aries, and therefore abstained from killing sheep, and held shepherds in contempt. Compare 'Behold we shall sacrifice the abomination of the Egyptians,' etc. (Exodus 8:26); 'For every shepherd is an abomination to the Egyptians' (Genesis 46:34). Some sects among the Sabeans worshipped demons, and imagined that these assumed the form of goats, and called them therefore 'goats' [se'irim]. For this reason those sects abstained from eating goats' flesh. Most idolaters objected to killing cattle, holding this species of animals in great estimation. Therefore the people of Hodu [India] up to this day do not slaughter cattle even in those countries where other animals are slaughtered. In order to eradicate these false principles, the Law commands us to offer sacrifices only of these three kinds: 'You shall bring your offering of the cattle, of the herd and of the flock' (Lev. 1:2). Thus the very act which is considered by the heathen as the greatest crime, is the means of approaching God, and obtaining His pardon for our sins.
"This is also the reason why we were commanded to kill a lamb on Passover, and to sprinkle the blood thereof outside on the gates. We had to free ourselves of evil doctrines and to proclaim the opposite, that the very act which was then considered as being the cause of death would be the cause of deliverance from death. Compare 'And the Lord will pass over the door, and will not let the Destroyer to enter your houses to smite you' (Exodus 12:23). Thus they were rewarded for performing openly a service every part of which was objected to by the idolaters" (Guide for the Perplexed, Book 3, chapter 46).
seliyah.org
This tenth plague differs from the rest not only in its severity but also in the events preceding it. The Israelites no longer sit passively witnessing the mighty hand of God. This time, they must perform the commandment of the Paschal lamb before God's smiting of all the firstborn of Egypt:
"The Lord said to Moses and Aaron in the land of Egypt: ... Speak to the whole community of Israel and say that on the tenth of this month each of them shall take a lamb to a family, a lamb to a household...Your lamb shall be without blemish, a yearling male; you may take it from the sheep or from the goats. You shall keep watch over it until the fourteenth day of this month; and all the assembled congregation of the Israelites shall slaughter it towards evening. They shall take some of the blood and put it on the two doorposts and the lintel of the houses in which they are to eat it. They shall eat the flesh that same night; they shall eat it roasted over the fire, with unleavened bread and with bitter herbs. Do not eat any of it raw, or cooked in any way with water, but roasted over the fire - its head with its legs and with its entrails. You shall not leave any of it over until morning; if any of it is left until morning, you shall burn it.
"This is how you shall eat it: your loins girded, your sandals on your feet, and your staff in your hand; and you shall eat it hurriedly; it is a passover offering to the Lord. For that night, I will go through the land of Egypt and strike down every firstborn in the land of Egypt, both man and beast; and I will mete out punishments to all the gods of Egypt, I the Lord. And the blood on the houses where you are staying shall be a sign for you: when I see the blood I will pass over you, so that no plague will destroy you when I strike the land of Egypt" (Exodus 12:1, 3-13).
"Moses then summoned all the elders of Israel and said to them, 'Draw out and take lambs for your families, and slaughter the passover offering. Take a bunch of hyssop, dip it in the blood that is in the basin, and apply some of the blood that is in the basin to the lintel and to the two doorposts. None of you shall go outside the door of his house until morning. For when the Lord goes through to smite the Egyptians, He will see the blood on the lintel and the two doorposts, and the Lord will pass over the door and not let the Destroyer enter and smite your home'" (Exodus 12:21-23).
God commands the Israelites to put blood from the sacrificed lamb on the two doorposts and the lintel of the houses in which the Paschal lamb is eaten. The blood is to serve as a sign protecting the Israelites from the plague of the firstborn. Upon seeing the blood on the homes of the Israelites, God will pass over them and not inflict any harm on those in the home. According to a simple reading of the text it seems as if the blood on the houses is to serve as a sign for God designating the Jewish residences in Egypt. However, such a possibility is philosophically untenable; why would God, the omniscient, need an external sign in order to know which homes are Jewish? Surely everything is revealed before Him! Our sages in the Mekhilta of Rabbi Yishmael (Halakhic midrash of our sages on Exodus) rule out the possibility that the blood is a sign for God on textual grounds:
"And the blood on the houses where you are staying shall be a sign for YOU" (12:13)- "A sign for you but not a sign for Me."
If the blood is not meant to serve as a sign for God, designating Jewish homes, then what is its function? The answer to this question depends on a disagreement amongst our sages regarding the exact location where the blood was applied:
"Rabbi Natan says [that the blood was applied] on the inside [of the houses]...as is stated 'And the blood on the houses where you are staying shall be a sign for you' (12:13) - A sign for you but not a sign for others. Rabbi Isaac says [that the blood was applied] on the outside [of the houses] so that the Egyptians would see [the blood] and their intestines would fail [they would be horrified]" (Mekhilta).
The sages agree that the blood is not a sign for God. However, they disagree whether the blood was applied on the internal part of the door, facing the people inside the house, or on the external part of the door, facing the Egyptians walking outside. The location of the blood affects our understanding of its function and the ultimate purpose of the commandment of the Paschal lamb.
We will begin our analysis of the Paschal lamb with Maimonide's (Rabbi Moshe ben Maimon, Egypt, 1138-1204) explanation:
"Scripture tells us that the Egyptians worshipped Aries, and therefore abstained from killing sheep, and held shepherds in contempt. Compare 'Behold we shall sacrifice the abomination of the Egyptians,' etc. (Exodus 8:26); 'For every shepherd is an abomination to the Egyptians' (Genesis 46:34). Some sects among the Sabeans worshipped demons, and imagined that these assumed the form of goats, and called them therefore 'goats' [se'irim]. For this reason those sects abstained from eating goats' flesh. Most idolaters objected to killing cattle, holding this species of animals in great estimation. Therefore the people of Hodu [India] up to this day do not slaughter cattle even in those countries where other animals are slaughtered. In order to eradicate these false principles, the Law commands us to offer sacrifices only of these three kinds: 'You shall bring your offering of the cattle, of the herd and of the flock' (Lev. 1:2). Thus the very act which is considered by the heathen as the greatest crime, is the means of approaching God, and obtaining His pardon for our sins.
"This is also the reason why we were commanded to kill a lamb on Passover, and to sprinkle the blood thereof outside on the gates. We had to free ourselves of evil doctrines and to proclaim the opposite, that the very act which was then considered as being the cause of death would be the cause of deliverance from death. Compare 'And the Lord will pass over the door, and will not let the Destroyer to enter your houses to smite you' (Exodus 12:23). Thus they were rewarded for performing openly a service every part of which was objected to by the idolaters" (Guide for the Perplexed, Book 3, chapter 46).