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This explanation aims to share Isaiah 42:6, 49:8, two fantastic verses which show us that the servant whom G-d sent is one man (Messiah/Christ) and therefore not a nation (many people).
These verses both state Messiah was ‘given’ as/for a [new] ‘covenant’ (ref. Jeremiah 31:31) for the many – in the sense that he is the High Priest in the order of Melchizadek (Psalm 110:4, 45:7) for the new covenant.
Here, we see that God has given His created, faithful Son Adonai Yehoshua HaMoshiach (the Lord Jesus Christ) for/as a [new] ‘covenant’ (ref. Jeremiah 31:31) for the many – in the sense that he is the High Priest in the order of Melchizadek (Psalm 110:4, 45:7) for the new covenant.
What Is This New Covenant?
The covenant spoken of here is referred to in Jeremiah as the ‘new covenant‘;
‘…I will make a new covenant with the house of Israel and the house of Judah, not like the covenant that I made with their fathers on the day when I took them by the hand to bring them out of the land of Egypt,…’
(Jeremiah 31:31-32 ESV)
Briefly, this New Covenant means complete forgiveness of sins (Jeremiah 31:34, Ezekiel 36:33, Hebrews 10:17), a new heart and refreshing from God (Ezekiel 36:26-28, Jeremiah 31:33-34, Acts 15:9, 2 Corinthians 5:17 KJV, Acts 3:19 NASB) – and everlasting life without end upon being ressurected, by grace through faith.
‘…a precious cornerstone…: ‘Whoever believes will not be in haste.’…
Then your covenant with death will be annulled… Now therefore do not scoff, lest your bonds be made strong;… destruction…’
(Isaiah 28:16, 28:18, 28:22 ESV)
‘…Christ Jesus himself being the cornerstone,’
(Ephesians 2:20 ESV)
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
John 3:16 KJV
Why Does It Say A Man Was Given For The New Covenant?
The Messiah (Christ) was ‘given’ for this New Covenant, in the sense that ‘after his sinless walk here on this earth, fulfilling Scripture and prophecy – he was then declared High Priest in the order of Melchizadek’ (Psalm 45:6-7, 110:4, Hebrews 5:6);
The LORD says to my Lord: “Sit at my right hand, until I make your enemies your footstool.” The LORD sends forth from Zion your mighty scepter. Rule in the midst of your enemies! The LORD has sworn and will not change his mind, “You are a priest forever after the order of Melchizedek.”
Psalm 110:1-2, 110:4 ESV
Thy throne, O god, is for ever and ever: the sceptre of thy kingdom is a right sceptre. Thou lovest righteousness, and hatest wickedness: therefore god, thy God, hath anointed thee with the oil of gladness above thy fellows.
Psalm 45:6-7 KJV [amended].
As High Priest, Moshiach (Messiah/Christ) is referred to as the mediator between the Holy God and fallen man – in a similar (though suprerior) manner to how Moses represented the people at Mount Sinai;
For there is one God, and there is one mediator between God and men, the man Christ Jesus,
1 Timothy 2:5 ESV
Those who believe are thus represented in a very special way by the Messiah before God – in that they believe for, and recieve saving grace which allows for everlasting life without end (Acts 15:11). Christ (Messiah) makes intercession (prayer) for those who believe to God as High Priest (Isaiah 53:12).
With Messiah As King And High Priest, What About The Ancient Levitical Priests?;
A quick note on Levite Priests (Sons of Aaron) as per the Law of Moses (Torah).
Holy Scripture, certainly states that Messiah (Christ) is High Priest in the order of Melchizadek as per the Old Testament (Tanakh) and New Testemant references above.
Such is a legal and established type of priesthood – recognised by G-d and found in Scripture;
Then Melchizedek king of Salem brought out bread and wine. He was priest of God Most High,
Genesis 14:18 NIV.
With this, in no place are the sons of Aaron abolished as serving as priests – rather, we see even in the books of Isaiah and Revelation that they indeed exist, are known for their service, and serve even in the new heaven and new earth above;
‘…it shall be for him and for his descendants after him, a covenant of a permanent priesthood…’
(Numbers 25:13 NASB)
And some of them also I will take for priests and for Levites, says the LORD.
“For as the new heavens and the new earth that I make shall remain before me, says the LORD, so shall your offspring and your name remain.
Isaiah 66:21-22 ESV
‘…you will be called the priests of the LORD; You will be spoken of as ministers of our God….’
(Isaiah 61:6 NASB2020)
‘I Thought That The Levites Are Nolonger referred To As God’s Priests, Because Christ is Now High Priest.‘
If a person raises the following verse;
For when the priesthood is changed, the law must be changed also.
Hebrews 7:12 NIV
and with this they then say something along the lines of;
‘Scripture states that there was a change of priesthood with Christ taking over, and this means that the Levites have since been removed from all office’s of priesthood – even in the new heaven and new earth.’
– such would be a mistaken interpretation.
Instead, the verse is referring to the High Priest in the order of Melchizadek.
It is referring to Christ and his office as high priest in this accepted priestly order (ref. Psalm 110:4), as ranking higher and for a very special purpose; everlasting life to those who believe, all who he intercedes for (Isaiah 53:12).
Further supporting this, and the fact that genuine levite sons of Aaron are still priests to God as per Holy Scripture, is the fact that even the Apostle Paul, still acknowledges the Levitical priests in the second Temple – after Christ had been raised from the dead.
The apostle Paul brought payment for ceremonial cleansing for himself and other believers, and gave it to the certified Levite priest(s) in the authorised Temple in Jerusalem (Acts 21:24, see article here).
With this, Holy Scripture states that those who believe in Messiah (Christ) might also be known as part of this priesthood ‘in the order of Melchizadek’ (who was once king of Salem, ref. Gen 14:18);
‘…you are a chosen people, a royal priesthood, a holy nation, God’s special possession, that you may declare the praises of him who called you out of darkness into his wonderful light.’
(1 Peter 2:9 NIV)
and has made us to be a kingdom and priests to serve his God and Father—to him be glory and power for ever and ever! Amen.
Revelation 1:6 NIV
Harmony can be seen in this matter here.
Isaiah 42:6 and 49:8 speak of one man (Christ) being given for/as a [new] ‘covenant’ (ref. Jeremiah 31:31).
This means that as per the Scriptures cited above, he is the high Priest in the order of Melchizadek (an accepted priesthood in Scripture), and sole mediator between the Holy G-d and fallen man (1 Timothy 2:5).
Holy Scripture confirms that the Levitical sons of Aaron remain priests perpetually, however just as the statute in Isaiah 28:16 speaks of everlasting life for all who believe was put in place at Christ’s death and ressurection, so to a recognised priesthood was put in place for what is referred to verbatim as a ‘new covenant’ (Jeremiah 31:31) – the very one Messiah was ‘given’ for (Isaiah 42:6, 49:8).
Hoping it is fruitful.
May the Holy G-d bless you beyond maximum believing in His risen Son the Lord Jesus Christ (Adonai Yehoshua HaMoshiach). Amen.