The Blood   

                                                                                                    
Blood of animals that were sacrificed in the Old Testament are a fore shadow of the blood of the Lamb of GOD in the New Testament. JESUS is the Lamb of GOD.
The blood of a lamb applied with a bunch of Hyssop on the lintel and doorposts of a family home was the only way of escape from the angel of death  who would strike all the firstborn in Egypt. This picture reminds us of the our LORD JESUS on the cross.
Exodus 12:12-23 (NKJV)
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.
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.
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.
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.
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.
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.' "
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.

Blood is the symbol of life
Leviticus 17:11 (NKJV)
11 For the life of the flesh is in the blood, and I have given it to you upon the altar to make atonement for your souls; for it is the blood that makes atonement for the soul.'

The red heifer without blemish and with no defect, its blood and Hyssop - Foreshadow the Lamb of GOD without blemish. He was scourged and crucified on a wooden cross. His blood is still available to us and powerful enough to cleanse us from all sin.
Numbers 19:1-9 (NKJV)
1 Now the LORD spoke to Moses and Aaron, saying,
2 "This is the ordinance of the law which the LORD has commanded, saying: 'Speak to the children of Israel, that they bring you a red heifer without blemish, in which there is no defect and on which a yoke has never come.
3 You shall give it to Eleazar the priest, that he may take it outside the camp, and it shall be slaughtered before him;
4 and Eleazar the priest shall take some of its blood with his finger, and sprinkle some of its blood seven times directly in front of the tabernacle of meeting.
5 Then the heifer shall be burned in his sight: its hide, its flesh, its blood, and its offal shall be burned.
6 And the priest shall take cedar wood and hyssop and scarlet, and cast them into the midst of the fire burning the heifer.
7 Then the priest shall wash his clothes, he shall bathe in water, and afterward he shall come into the camp; the priest shall be unclean until evening.
8 And the one who burns it shall wash his clothes in water, bathe in water, and shall be unclean until evening.
9 Then a man who is clean shall gather up the ashes of the heifer, and store them outside the camp in a clean place; and they shall be kept for the congregation of the children of Israel for the water of purification; it is for purifying from sin.

The invitation to come, repent and be cleansed by the blood is given to every individual.
Every black sin covered by red blood becomes white righteousness!
Isaiah 1:18-20 (NKJV)
18 "Come now, and let us reason together," Says the LORD, "Though your sins are like scarlet, They shall be as white as snow; Though they are red like crimson, They shall be as wool.
19 If you are willing and obedient, You shall eat the good of the land;
20 But if you refuse and rebel, You shall be devoured by the sword"; For the mouth of the LORD has spoken.

The Holy Communion we celebrate as Christians now is in memory of the last supper JESUS had with His disciples before His crucifixion. Participating in such a meal, remembering JESUS’ sacrifice of Himself, makes us part of the body of CHRIST - The Church.
Matthew 26:26-28 (NKJV)
26 And as they were eating, Jesus took bread, blessed and broke it, and gave it to the disciples and said, "Take, eat; this is My body."
27 Then He took the cup, and gave thanks, and gave it to them, saying, "Drink from it, all of you.
28 For this is My blood of the new covenant, which is shed for many for the remission of sins.

Memories of the Passover night in Egypt:- Hyssop, Blood, Lintel & doorposts, and now, the cross.
John 19:17-18 & 29 (NKJV)
17 And He, bearing His cross, went out to a place called the Place of a Skull, which is called in Hebrew, Golgotha,
18 where they crucified Him, and two others with Him, one on either side, and Jesus in the center.
29 Now a vessel full of sour wine was sitting there; and they filled a sponge with sour wine, put it on hyssop, and put it to His mouth.

This is how I appropriate this truth and make it real in my life.
Galatians 2:20 (NKJV)
20 I have been crucified with Christ; it is no longer I who live, but Christ lives in me; and the life which I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me.