Those are shadows of the heavenly. The heavenly Passover was Christ. The heavenly unleavened bread is the bread of life (the bible). The number 7 means the bread remains unleavened permenantly.
Exodus 12:14 “And this day shall be unto you for [a memorial];
and ye shall keep it a feast to the Lord throughout your generations;
ye shall keep it [a feast] by an ordinance [for ever].
a memorial—not a shadow, a memorial—a feast—to be kept forever
A memorial of deliverance from Egypt, which pictures to us deliverance from sin!
1Co 11:23 For I have received of the Lord that which also I delivered unto you,
That the Lord Jesus the same night in which he was betrayed took bread:
1Co 11:24 And when he had given thanks, he brake it, and said, Take, eat:
this is my body, which is broken for you: this do in remembrance of me.
1Co 11:25 After the same manner also he took the cup, when he had supped,
saying, This cup is the new testament in my blood: this do ye, as oft as ye drink it,
in remembrance of me.
referring back to this...
Luk 22:15 And he said unto them, With desire I have desired to eat
this passover with you before I suffer: For I say unto you, I will not
any more eat thereof, until it be fulfilled in the kingdom of God.
Luk 22:17 And he took the cup, and gave thanks, and said,
Take this, and divide it among yourselves:
Luk 22:18 For I say unto you, I will not drink of the fruit of the vine,
until the kingdom of God shall come.
Luk 22:19 And he took bread, and gave thanks, and brake it, and gave unto them,
saying, This is my body which is given for you: this do in remembrance of me.
Luk 22:20 Likewise also the cup after supper, saying,
This cup is [the new testament] in my blood, which is shed for you.
Do what in remembrance of me? They were taking the Passover.
The Passover service also consists of the foot washing...
Joh 13:12 So after he had washed their feet, and had taken his garments,
and was set down again, he said unto them, Know ye what I have done to you?
Joh 13:13 Ye call me Master and Lord: and ye say well; for so I am.
Joh 13:14 If I then, your Lord and Master, have washed your feet;
ye also ought to wash one another's feet.
Joh 13:15 For I have given you an example, that ye should do as I have done to you.
Joh 13:16 Verily, verily, I say unto you, The servant is not greater than his lord;
neither he that is sent greater than he that sent him.
Joh 13:17 If ye know these things, happy are ye if ye do them.
and then Paul says this...
1Co 5:6 Your glorying is not good. Know ye not that a little leaven leaveneth
the whole lump? Purge out therefore the old leaven, that ye may be a new lump,
as ye are unleavened. For even Christ our passover is sacrificed for us:
1Co 5:8 Therefore let us keep [the feast],
not with old leaven, neither with the leaven of malice and wickedness;
but with the unleavened bread of sincerity and truth.
And he said that to a Gentile church, to keep the feast of unleavened bread.
Nowhere is a Sunday morning Ishtar sunrise service taught in scripture
but the Passover and the Days of Unleavened Bread are taught.
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Acts 12:3 (KJV)
And because he saw it pleased the Jews, he proceeded further to take Peter also.
(Then were the days of unleavened bread.)
Acts 20:6 (KJV)
And we sailed away from Philippi after (the days of unleavened bread),
and came unto them to Troas in five days; where we abode seven days.