stranger it is not wise to assume you know a person after reading only one or two posts by them. I have read Heb 8:8 many times and I understand that in THIS scripture it is referring to the House of Israel.
Then go a little further and read Rev 7:3-8 where the firstfruits sealed first as God's priests in the kingdom come are indeed all of tribal Israel... thus the covenants are one and the same new covenant with both Houses of ancient Israel
Romans 11:26 And so
all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness
from Jacob:
Let's take this a little further and I will guess that you realize that there are more than just "one" covenant spoken of in scripture.
There are many covenants mentioned in scripture, in OT and NT ...
The new covenant that I am referring to is the one that Jesus is the mediator or...the everlasting covenant which is in His Blood.
Jesus is indeed 'the Deliverer' form out of Zion of Israel mentioned by Paul [above quote] and the covenant is ratified only because Jesus perfected his love to the [unjust] death he need not have suffered for himself .... if you look at the original then you will see that the covenant is age-lasting rather than 'everlasting' , but that is a small point excepot that after the age there is no actual use for it because it is fu7lfilled whe Israel are all saved [first , to be able to act as a holy nation of priests at the second resurrecton for the kingdom come ...
Exodus 19:6 And ye shall be unto me a kingdom of priests, and an holy nation. These are the words which thou shalt speak unto the children of Israel.
Hbr 12:22 But ye are come unto mount Sion, and unto the city of the living God, the heavenly Jerusalem, and to an innumerable company of angels,
Hbr 12:23 To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect,
Read Rev 7:3-8 ... the firstborn church are indeed the remnant saints of Israel, all belonging to one tribe or another ...all descendants of the sons of Jacob through whom came the promises by descent ...
Hbr 12:24 And to JESUS THE MEDIATOR OF THE NEW COVENANT, and to the blood of sprinkling, that speaketh better things than [that of] Abel.
'THE' new covenant ... implying there is but one rather clearly ?
1Cr 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.
Again ,the scripture details that Jesus went to Jerusalem to eat the Passover as his last meal with the disciples before his death as the sacrificial Passover Lamb of God ... Jesus then fulfilled the memorial Passover , made holy by decree of God, and so set it as a memorial to his death which brought in the new covenant with Israel... the point being that by fulfilling the old covenant and perfecting his love by dying unjustly for sake of all men, Jesus became the messiah of Israel [annointed king, 'christos' in Greek NT ... annointed by Mary before his daeth - Mark 14:9 Verily I say unto you, Wheresoever this gospel shall be preached throughout the whole world, this also that she hath done shall be spoken of for a memorial of her.]
The role of the messiah, the christ, is given in scripture as the re-uniting of the two yet-divided Houses of the nation of Israel under one king :-
Ezekiel 37:22 And I will make them one nation in the land upon the mountains of Israel; and one king shall be king to them all: and they shall be no more two nations, neither shall they be divided into two kingdoms any more at all:
--this being the necessary first step in making Israel a holy nation of priests and kings who reign on the earth , but Jesus does not rule in THIS earth :-
Revelation 5:10 ...And hast made us unto our God
kings and priests: and we shall
reign on the earth.
John 18:36 Jesus answered,
My kingdom is not of
this world: ...
It is clear then that the kingdom is in the new earth , and the preists and kings of the whole nation of Israel saved first are redeemed solely to minister to the sinners of THIS earth resurrected at the second resurrection...
--thus the many are saved after the few [Rev 7:9-10] , in fact more than a thousand years afterward , perfecting their love in righteous life in the new earth, thus following Jesus in sinless loving living as saints in the kingdom of God... this then the broad way of the MANY to God through Jesus , that is differenet than the strait narrow way of saints by grace of the new covenant in this world :-
2 Peter 3:13 Nevertheless we, according to his promise, look for new heavens and a new earth,
wherein dwelleth righteousness.
Religion of men thus has the scriptures totally wrong, most men are saved after death by the ministry of Israel under jesus as their king , in the new earth ... after the second resurrection then, God baptises all flesh according to his promise to do so [Joel 2:28] and all men come to know all truth [John 16:13] ... [but we know most men diesd sinners and NOT believing in Jesus already, without knowing all truth... so we know God cannot hev baptised all emn now as the churches of men claim ... John 16:13 proves that because most men die ignorant of all truth of God!]
Thus there are no other new covenants, none are required... grace is required by Israel only , all other men are purged of sin by death :-
Romans 6:7 For he that is dead is freed from sin.
Hbr 13:20 Now the God of peace, that brought again from the dead our Lord Jesus, that great shepherd of the sheep, through the BLOOD OF THE EVERLASTING COVENANT,
Again, the 'sheep' are mentioned repeatedly in the OT , it is again an allegory for Israel used consistently in all scripture ,e.g. :-
1 Kings 22:17 And he said, I saw all Israel scattered upon the hills, as sheep that have not a shepherd: and the LORD said, These have no master: let them return every man to his house in peace.