Jayson,
I want to explore a couple of things regarding what I consider the change in the administration of the Passover from the time it was first inaugurated in Egypt to the time it was celebrated in Israel.
First I want to note the following passages from Exodus 12:1-28:
[quote:bae3d12c3a]1 Now the Lord spoke to Moses and Aaron in the land of Egypt, saying, 2 "This month shall be your beginning of months; it shall be the first month of the year to you. 3 Speak to all the congregation of Israel, saying: [b:bae3d12c3a]'On the tenth day of this month every man shall take for himself a lamb, according to the house of his father, a lamb for a household. [/b:bae3d12c3a]4 And if the household is too small for the lamb, let him and his neighbor next to his house take it according to the number of the persons; according to each man's need you shall make your count for the lamb. 5 [b:bae3d12c3a]Your lamb shall be without blemish, a male of the first year. You may take it from the sheep or from the goats. 6 Now you shall keep it until the fourteenth day of the same month. Then the whole assembly of the congregation of Israel shall kill it at twilight. 7 And they shall take some of the blood and put it on the two doorposts and on the lintel of the houses where they eat it. 8 Then they shall eat the flesh on that night; roasted in fire, with unleavened bread and with bitter herbs they shall eat it. [/b:bae3d12c3a]9 Do not eat it raw, nor boiled at all with water, but roasted in fire--its head with its legs and its entrails. 10 You shall let none of it remain until morning, and what remains of it until morning you shall burn with fire. 11 [b:bae3d12c3a]And thus you shall eat it: with a belt on your waist, your sandals on your feet, and your staff in your hand.[/b:bae3d12c3a] So you shall eat it in haste. It is the Lord's Passover. 12 For I will pass through the land of Egypt on that night, and will strike all the firstborn in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment: I am the Lord. 13 Now the blood shall be a sign for you on the houses where you are. And when I see the blood, I will pass over you; and the plague shall not be on you to destroy you when I strike the land of Egypt. [b:bae3d12c3a][/b:bae3d12c3a]
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Verses 1-12 establishes the initial Passover meal. Note that every man was to take a lamb for his household (verse 3), kill it (verse 6), then put the blood on the two doorposts and lintel of the houses where they will eat the meal (verse 7). Note also that the meal was to consist strictly of the lamb, unleavened bread and bitter herbs (verse 8). Note in verse 11 how they are to be dressed when they eat the meal.
[quote:bae3d12c3a]14 So this day shall be to you a memorial; and you shall keep it as a feast to the Lord throughout your generations. You shall keep it as a feast by an everlasting ordinance. [b:bae3d12c3a]15 Seven days you shall eat unleavened bread. On the first day you shall remove leaven from your houses. For whoever eats leavened bread from the first day until the seventh day, that person shall be cut off from Israel. [/b:bae3d12c3a]16 On the first day there shall be a holy convocation, and on the seventh day there shall be a holy convocation for you. No manner of work shall be done on them; but that which everyone must eat--that only may be prepared by you. [b:bae3d12c3a]17 So you shall observe the Feast of Unleavened Bread, for on this same day I will have brought your armies out of the land of Egypt. Therefore you shall observe this day throughout your generations as an everlasting ordinance. [/b:bae3d12c3a]18 In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread, until the twenty-first day of the month at evening. 19 For seven days no leaven shall be found in your houses, since whoever eats what is leavened, that same person shall be cut off from the congregation of Israel, whether he is a stranger or a native of the land. 20 You shall eat nothing leavened; in all your dwellings you shall eat unleavened bread.' " [/quote:bae3d12c3a]
In verses 14-20 God relays how the Passover meal will be celebrated throughout their generations (verse 14). At this time God also establishes the Feast of Unleavened Bread, which follows immediately after the Passover (verse 15). This dovetails into Duet 16:1-8
[quote:bae3d12c3a]1 "Observe the month of Abib, and keep the Passover to the Lord your God, for in the month of Abib the Lord your God brought you out of Egypt by night. 2 Therefore you shall sacrifice the Passover to the Lord your God, from the flock and the herd, in the place where the Lord chooses to put His name. [b:bae3d12c3a]3 You shall eat no leavened bread with it; seven days you shall eat unleavened bread with it, that is, the bread of affliction (for you came out of the land of Egypt in haste), that you may remember the day in which you came out of the land of Egypt all the days of your life. [/b:bae3d12c3a]4 And no leaven shall be seen among you in all your territory for seven days, nor shall any of the meat which you sacrifice the first day at twilight remain overnight until morning. 5 You may not sacrifice the Passover within any of your gates which the Lord your God gives you; 6 but at the place where the Lord your God chooses to make His name abide, there you shall sacrifice the Passover at twilight, at the going down of the sun, at the time you came out of Egypt. 7 And you shall roast and eat it in the place which the Lord your God chooses, and in the morning you shall turn and go to your tents. 8 Six days you shall eat unleavened bread, and on the seventh day there shall be a sacred assembly to the Lord your God. You shall do no work on it. [/quote:bae3d12c3a]
And Lev 23:4-8:
[quote:bae3d12c3a]4 "These are the Lord's appointed times, the sacred assemblies you are to proclaim at their appointed times. 5 The Passover to the Lord comes in the first month, at twilight on the fourteenth day of the month. 6 The Festival of Unleavened Bread to the Lord is on the fifteenth day of the same month. For seven days you must eat unleavened bread. 7 On the first day you are to hold a sacred assembly; you are not to do any daily work. 8 You are to present a fire offering to the Lord for seven days. On the seventh day there will be a sacred assembly; you must not do any daily work."[/quote:bae3d12c3a]
[quote:bae3d12c3a]21 Then Moses called for all the elders of Israel and said to them, "Pick out and take lambs for yourselves according to your families, and kill the Passover lamb. 22 And you shall take a bunch of hyssop, dip it in the blood that is in the basin, and strike the lintel and the two doorposts with the blood that is in the basin. And none of you shall go out of the door of his house until morning. 23 For the Lord will pass through to strike the Egyptians; and when He sees the blood on the lintel and on the two doorposts, the Lord will pass over the door and not allow the destroyer to come into your houses to strike you. 24 And you shall observe this thing as an ordinance for you and your sons forever. 25 It will come to pass when you come to the land which the Lord will give you, just as He promised, that you shall keep this service. 26 And it shall be, when your children say to you, 'What do you mean by this service?' 27 that you shall say, 'It is the Passover sacrifice of the Lord, who passed over the houses of the children of Israel in Egypt when He struck the Egyptians and delivered our households.' " So the people bowed their heads and worshiped. 28 Then the children of Israel went away and did so; just as the Lord had commanded Moses and Aaron, so they did.[/quote:bae3d12c3a]
Note that in verse 26 we see the first instance of children asking any questions about the Passover and these questions happen after Israel passes into the Promised Land. Note that God never instructs the father"(tm)s to prompt these questions or make them apart of the Passover meal.
So there definately is a change in the administration of the Passover from the time it was established in Egypt vs entrance into the promised land. Fathers no longer killed the passover lamb, the priests did in the Temple; the lamb was then eaten by the temple priests per temple law; and no more putting the blood of the lamb on the doorposts and lintel.
Regarding the other 3 festivals (other than the Passover) a definate argument can be made that both children and women were apart of these celebrations. But note the differences in Duet 16:1-8 where the celebration of the Passover and the Feast of Unleavened Bread are discussed, versus 9-12 the Feast of Weeks (Pentecost) and 13-15 the Feast of Tabernacles (Booths). In versus 11 and 14 the whole family were to celebrate, so I think it can be safely said the whole family celebrated the Feast of Weeks and Tabernacles together in Jerusalem and mostlikely they also came along for the Feast of Unleavened Bread. But there is no evidence that women and children participated in the Passover sacrifice at the Temple.
Duet 16:1-17
[quote:bae3d12c3a]1 "Observe the month of Abib, and keep the Passover to the Lord your God, for in the month of Abib the Lord your God brought you out of Egypt by night. 2 Therefore you shall sacrifice the Passover to the Lord your God, from the flock and the herd, in the place where the Lord chooses to put His name. 3 You shall eat no leavened bread with it; seven days you shall eat unleavened bread with it, that is, the bread of affliction (for you came out of the land of Egypt in haste), that you may remember the day in which you came out of the land of Egypt all the days of your life. 4 And no leaven shall be seen among you in all your territory for seven days, nor shall any of the meat which you sacrifice the first day at twilight remain overnight until morning. 5 You may not sacrifice the Passover within any of your gates which the Lord your God gives you; 6 but at the place where the Lord your God chooses to make His name abide, there you shall sacrifice the Passover at twilight, at the going down of the sun, at the time you came out of Egypt. 7 And you shall roast and eat it in the place which the Lord your God chooses, and in the morning you shall turn and go to your tents. 8 Six days you shall eat unleavened bread, and on the seventh day there shall be a sacred assembly to the Lord your God. You shall do no work on it.9 "You shall count seven weeks for yourself; begin to count the seven weeks from the time you begin to put the sickle to the grain. 10 Then you shall keep the Feast of Weeks to the Lord your God with the tribute of a freewill offering from your hand, which you shall give as the Lord your God blesses you. 11 You shall rejoice before the Lord your God, you and your son and your daughter, your male servant and your female servant, the Levite who is within your gates, the stranger and the fatherless and the widow who are among you, at the place where the Lord your God chooses to make His name abide. 12 And you shall remember that you were a slave in Egypt, and you shall be careful to observe these statutes. 13 "You shall observe the Feast of Tabernacles seven days, when you have gathered from your threshing floor and from your winepress. 14 And you shall rejoice in your feast, you and your son and your daughter, your male servant and your female servant and the Levite, the stranger and the fatherless and the widow, who are within your gates. 15 Seven days you shall keep a sacred feast to the Lord your God in the place which the Lord chooses, because the Lord your God will bless you in all your produce and in all the work of your hands, so that you surely rejoice. 16 Three times a year all your males shall appear before the Lord your God in the place which He chooses: at the Feast of Unleavened Bread, at the Feast of Weeks, and at the Feast of Tabernacles; and they shall not appear before the Lord empty-handed. 17 Every man shall give as he is able, according to the blessing of the Lord your God which He has given you.[/quote:bae3d12c3a]
And as verse 16 notes, it is the men who must appear before the Lord, not the whole family when the sacrifices are made.