Who shall declare His Generation ?
Isa 53:8
He was taken from prison and from judgment: and who shall declare
his generation? for he was cut off out of the land of the living: for the transgression of my people was he stricken.
The generation in question is Christ's generation, His Spiritual offspring, and being it a spiritual offspring, the speaker must be the Holy Spirit, for only God's Spirit can communicate to that which is spiritual [1 Cor 2]; even though the Spirit may and does use the voice of flesh and blood or human Gospel Ministers; This principle is brought out by Paul here
2 Cor 3:6-8
6Who also
hath made us able ministers of the new testament; not of the letter, but of the spirit: for the letter killeth, but the spirit giveth life.
7But if the ministration of death, written and engraven in stones, was glorious, so that the children of Israel could not stedfastly behold the face of Moses for the glory of his countenance; which glory was to be done away:
8How shall not
the ministration of the spirit be rather glorious?
A Spiritual ministry directed to a spiritual people or generation in a spiritual kingdom formed by the Resurrected Life of Jesus Christ !
Also that the Gospel ministration is spiritual is seen here
1 Cor 9:11
11If we have sown unto you
spiritual things, is it a great thing if we shall reap your carnal things?
The spiritual things being the Gospel
Rom 15:27
27It hath pleased them verily; and their debtors they are. For if the Gentiles
have been made partakers of their spiritual things, their duty is also to minister unto them in carnal things.
The spiritual things once again being the Gospel !
Now the spiritual things being the gospel, and the natural man cannot receive of those things of the Spirit of God
1 Cor 2:13-14
13Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth;
comparing spiritual things with spiritual.
14But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
The Gospel is preached to that spiritual seed or generation which is said shall serve Him, and it shall be accounted to the the Lord for a generation
Ps 22:30-31
30A seed shall serve him; it shall be accounted to the Lord for a
generation.
31They shall come, and shall
declare his righteousness unto a people that shall be born [Regeneration or New Birth], that he hath done this.
Its that Chosen Generation that shall offer up spiritual sacrifices
1 Pet 2:5,
9
5Ye also, as lively stones, are built up a spiritual house, an holy priesthood,
to offer up spiritual sacrifices, acceptable to God by Jesus Christ.
9But
ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light;
The Prophet states, that after His soul shall be made a offering for sin
Isa 53:10, that He shall see His Seed or His generation !