Isaiah 44:6

Thus says the YHWH, the King of Israel and his Redeemer, the YHWH of hosts: 'I am the first and I am the last, And there is no God besides Me. Who is like Me?'

The Trinitarian Claim

Some Trinitarians actually claim the words, "his Redeemer, YHWH of hosts" refer to Jesus and Jesus is therefore being identified as Yahweh.


Examination of the Claim
The reader should be immediately aware that there is something wrong with read the text as if it says Yahweh of Hosts' redeemer is Yahweh of Hosts. It would be like supposing King David's servant is King David. The reasonable mind will immediately perceive that something is likely wrong with such an interpretation. This Trinitarian claim stems from the notion that the words "His Redeemer" means "Yahweh's Redeemer. However, the context makes it quite clear that "his redeemer" means "Jacob's redeemer" and the whole passage means " YHWH, the King of Israel and Jacob's Redeemer [who is] YHWH of hosts," where YHWH of Hosts is Jacob's Redeemer. This claim either stems from ignorance, or given that the claimant does know the facts, outright dishonesty.


Analysis of the Evidence
We only need to carefully regard the context to see this claim is an obvious error. Israel as a whole is known as God's "firstborn son." Jacob is also known in the Bible as "Israel," the name given to him by the angel with whom he struggled all night long. In fact, Israel derives its name from their progenitor, Israel, that is, their forefather Jacob. Because of this, Israel is figuratively called "Jacob" in the book of Isaiah and the nation of Israel is depicted as Jacob, Yahweh's chosen servant. Isaiah often speaks of the nation of Israel as if Israel was a singular person, his chosen servant Jacob. Therefore, the "his" in this passage does not refer to YAHWEH and Yahweh's Redeemer but to Jacob and Jacob's Redeemer. This figurative use of Israel as YAHWEH's chosen servant is a prophetic typology of the Messiah, Jesus of Nazareth. The passage is actually not referring to Jesus as YAHWEH's Redeemer but is referring to YAHWEH as Jacob's Redeemer, that is, the Redeemer of the nation of Israel.
Note the following passages:

Your name shall no longer be Jacob, but Israel. (Genesis 32:28).
Comfort, comfort my people, says your God. Speak tenderly to Jerusalem, and cry to her that her warfare is ended, that her iniquity is pardoned, that she has received from YAHWEH's hand double for all her sins.... Why do you say, O Jacob, and assert, O Israel, "My way is hidden from YAHWEH."
(Isaiah 40:1-27).
But you, Israel, My servant, Jacob whom I have chosen, descendant of Abraham My friend, you whom I have taken from the ends of the earth, and called from its remotest parts and said to you, `You are My servant, I have chosen you and not rejected you.... Do not fear, you worm Jacob, you men of Israel; I will help you," declares the LORD, "and your Redeemer is the Holy One of Israel. (Isaiah 41:8-9, 14).
Behold, My servant, whom I uphold; My chosen one in whom My soul delights. I have put My Spirit upon Him; He will bring forth justice to the nations.... Who gave Jacob up for spoil, and Israel to plunderers.
(Isaiah 42:1,24).
But now, thus says YAHWEH, your Creator, O Jacob, And He who formed you, O Israel, "Do not fear, for I have redeemed you; I have called you by name; you are Mine!... says the Lord, your Redeemer, the Holy One of Israel.... I am YAHWEH, your Holy One, the Creator of Israel, your King.... Yet you have not called on Me, O Jacob; but you have become weary of Me, O Israel.... I will consign Jacob to the ban and Israel to revilement. (Isaiah 43:1-28).

Now let us read this verse in context:

But now listen, O Jacob, My servant, and Israel, whom I have chosen: Thus says YAHWEH who made you and formed you from the womb, who will help you, Do not fear, O Jacob My servant; and you Jeshurun whom I have chosen. For I will pour out water on the thirsty land and streams on the dry ground; I will pour out My Spirit on your offspring and My blessing on your descendants. And they will spring up among the grass Like poplars by streams of water.' This one will say, `I am the YAHWEH's; And that one will call on the name of Jacob. And another will write on his hand, `Belonging to YAHWEH,' And will name Israel's name with honor. Thus says YAHWEH, the King of Israel and his Redeemer, YAHWEH of hosts: `I am the first and I am the last, And there is no God besides Me.... Remember these things, O Jacob, and Israel, for you are My servant; I have formed you, you are My servant, O Israel, you will not be forgotten by Me.... For YAHWEH has redeemed Jacob and in Israel He shows forth His glory. Thus says YAHWEH your Redeemer. (Isaiah 44:1-24).

It is crystal clear that "his Redeemer" means "Jacob's Redeemer."


Conclusion
Based on the contextual evidence, it is quite clear that the passage here is referring to Jacob's redeemer who is YHWH of Hosts.


Further Discussion
However, even more can be said since the Trinitarian claim ultimately backfires upon them. Note Isaiah 42:1ff. which necesssarily refers to Yahweh's chosen servant Jacob, that is, the nation of Israel, Yahweh's firstborn. But Matthew also quotes this to refer to Jesus and interestingly Jesus is also God's firstborn. How is it possible that Isaiah 42:1 refers both to Jesus and Israel? This type of thing is not uncommon in Scripture. For example, compare Hosea 11:1 and Matthew 2:15. Throughout Isaiah, this chosen servant is Israel depicted as a singular identity "Jacob" as God's chosen servant. But Jesus was the King of Israel and he was therefore Israel's representative. This is the reason he could legitimately die for Israel and why the sign, "Jesus of Nazareth, King of the Jews," was placed over his forehead. As King of the Jews, son of Abraham, son of Isaac, son of Jacob, son of David of the House of Judah, he embodied Israel Yahweh's chosen servant.
Since Jesus represents this chosen servant Israel then Isaiah 42:1ff is true of both Israel and Jesus. But that means that Isaiah 44:6 is both true of Jesus and Israel and YHWH is Jesus' redeemer. Also regard the following passages:

In the days of his flesh, Jesus offered up both prayers and supplications with loud crying and tears to the One able to save him from death, and He was heard because of his fear. Although he was a Son, He learned obedience from the things which he suffered. And having been made perfect, He became to all those who obey Him the source of eternal salvation (Hebrews 5:7-9)

But when Christ appeared as a high priest of the good things to come, He entered through the greater and more perfect tabernacle, not made with hands, that is to say, not of this creation; and not through the blood of goats and calves, but through His own blood, He entered the holy place once for all, having obtained eternal redemption. (Hebrews 9:11-12).

Yahweh of Hosts is Jesus' Redeemer, that is, Yahweh of Hosts is the One who redeemed Jesus.
Nevertheless, we do not need to belabour the above implications. The question at hand is about Isaiah 44:6 and the veracity of the Trinitarian claim. All we do need to see is that the Trinitarian claim for Isaiah 44:6 has absolutely no merit whatsoever. It is clearly a reference to Jacob's redeemer, Israel's redeemer. Yahweh of Hosts is Jacob's redeemer.