Many today challenge the authorship of Isaiah son of Amoz as writer of the whole of this book. I would disagree citing two key factors, first his is the only name cited and second the consistent use of the phrasing “the Holy One of Israel,” throughout.
The first 39 chapters are known as Book of Judgements as Isaiah lays out the judgement of God against the nations. The remaining Chapters 40-66 are known as the Book of Comforts, here God lays out His plan for the hope and restoration of Israel and all the nations.
And he said, – Reading other translations we see this later in the verse, here in the KJV it is front and center, GOD is speaking, so pay attention.
It is a light thing that thou shouldest be my servant – Okay (rhetorical) raise your hand how many think that their calling from God is a light (read simple, easy, undemanding ) thing. Well God thinks so!
to raise up the tribes of Jacob, and to restore the preserved of Israel: – God calls men for a specific purpose, if you think you want to serve God but say I do not know in what manner, PRAY, the Holy Spirit will show you the way. Far to many head out to a “mission” field without God’s calling and fail, do not be counted among them.
I will also give thee for a light to the Gentiles, – So if raising up the tribes of Jacob, and restoring the preserved of Israel was not enough of a challenge God tells Isaiah you will also be a light unto the Gentiles (those non-jews of his time and unsaved of the world today)
that thou mayest be my salvation unto the end of the earth. – We know that Salvation is in no one except Christ, so God is not telling Isaiah the he will be salvation, but that through his actions people will a light that draws folks to Christ Acts 13:47.
The patch above is worn by all of us associated with Mission M25 Ministries. It means Be a Light not a Mouth, and while of course God expects us to speak he does not expect us to ram stuff down folks throat.
Here in Isaiah God calls Isaiah to be a light unto the unsaved; that is be an example they want to emulate, be there for them in there time of need, be that person they can count on. God DOES NOT call Isaiah, stand on the corner and preach condemnation and scorn.
Do not get me wrong there is a time and place to point out error and biblical unrighteousness, yet even that must be done with the light of Christ and God’s Grace shining brightly.